Agilent J&W Specialty Columns

Agilent J&W Specialty GC Columns

Agilent J&W Specialty Columns are built for applications where a general-purpose GC phase isn’t enough—when you need targeted selectivity, improved recovery for active compounds, higher temperature capability, or method-driven performance for regulated workflows. These specialty chemistries help resolve difficult coelutions, stabilize peak shape, and increase confidence in trace-level quantitation across complex sample matrices.

This category includes WAX/PEG oxygenate columns (DB-WAX, HP-INNOWAX, Carbowax 20M families), acid-modified FFAP phases for organic acids and free fatty acids, and application-specific column families designed around petroleum, pesticides, PAHs, volatile or semivolatile panels, and biodiesel/FAME profiling. You’ll also find specialty formats such as high-temperature columns for high-boiling analytes, metal-clad columns for rugged handling, and PLOT columns for permanent gases and very light hydrocarbons.

Why Choose Specialty Columns

  • Targeted selectivity to resolve critical pairs and reduce coelutions in complex matrices
  • Improved peak shape and recovery for active analytes (acids, bases, oxygenates, trace targets)
  • Method-driven choices for regulated workflows (VOC/SVOC, pesticides, PAHs, fuels, biodiesel)
  • Specialty formats for demanding conditions (high-temperature programs, rugged handling, permanent gas analysis)

Common Application Areas

  • Oxygenates & solvents: WAX/PEG phases for alcohols, aldehydes, ketones, esters, and polar VOC profiles
  • Organic acids & FFAs: FFAP phases engineered for acidic compounds and improved symmetry
  • Environmental & industrial: pesticide screening, PAH panels, volatile/semivolatile workflows
  • Petroleum & fuels: hydrocarbon profiling and refinery QC methods
  • Biodiesel: enhanced ester/FAME separations for characterization and QC
  • Permanent gases: PLOT columns for strong retention of small molecules

Chrom Tech is an authorized distributor of Agilent J&W GC columns and can help you match phase chemistry, polarity, and application requirements to your method goals—whether you need a selectivity “reset,” better trace recovery, or a column built for high-boiling or regulated panels.

Agilent J&W Specialty Columns — Phase Descriptions
DB-HeavyWAX
High-capacity PEG-style WAX • Heavy oxygenates • complex matrices

DB-HeavyWAX is a high-capacity WAX (PEG-type) specialty column designed for challenging oxygenated mixtures where standard WAX phases may overload or lose resolution. It is commonly selected for heavier alcohols, glycols, and complex solvent/oxygenate profiles.

When to Choose This Column
  • You need WAX/PEG selectivity but higher capacity for heavier oxygenates
  • Samples contain complex matrices that challenge standard WAX columns
  • You want improved separation of higher-boiling oxygenated compounds
Key Specifications
CategoryWAX / Oxygenates
Separation ModePolar (PEG-type)
Best ForHeavier oxygenates, complex solvent profiles
DB-WAX & DB-WAXFF
Classic PEG WAX selectivity • oxygenates • flavors & solvents

DB-WAX and DB-WAXFF are WAX (PEG) specialty columns widely used for oxygenates, flavor compounds, and solvent mixtures where strong polar selectivity improves resolution. They are a common choice for alcohols, aldehydes, ketones, esters, and related oxygenated analytes.

When to Choose This Column
  • Oxygenated VOCs and solvent profiling
  • Flavor & fragrance separations
  • Polar analytes that do not resolve well on DB-5 / DB-1 type phases
Key Specifications
CategoryWAX / Oxygenates
Separation ModePolar (PEG)
Best ForAlcohols, esters, aldehydes, ketones
DB-WAXetr
WAX for trace analytes • improved inertness • oxygenates

DB-WAXetr is a specialty WAX phase optimized for improved inertness and trace-level performance. It is commonly selected when polar oxygenates show adsorption, tailing, or low recovery on standard WAX columns.

When to Choose This Column
  • Trace-level oxygenates and polar volatiles
  • Improved peak shape is needed for active polar compounds
  • You want WAX selectivity with better recovery and reproducibility
Key Specifications
CategoryWAX / Trace oxygenates
Separation ModePolar (PEG-type)
Best ForTrace oxygenates requiring improved inertness
HP-INNOWAX
Polar WAX (PEG) • versatile oxygenate selectivity • routine methods

HP-INNOWAX is a widely used polar WAX (PEG) column in the HP series, selected for oxygenates, flavors, and polar VOC profiles where strong polarity-driven retention improves separation.

When to Choose This Column
  • Routine oxygenate and solvent separations
  • Flavor & fragrance workflows
  • Polar VOCs that coelute on low-polarity phases
Key Specifications
CategoryWAX / Oxygenates
Separation ModePolar (PEG)
Best ForAlcohols, ketones, esters, polar VOCs
CP-WAX 52 CB
Polar WAX • oxygenates & solvents • strong polarity control

CP-WAX 52 CB is a polar WAX specialty column used for oxygenates and solvent mixtures requiring strong polarity-driven selectivity. It is often chosen to improve resolution of polar volatiles and reduce coelution in complex oxygenate profiles.

When to Choose This Column
  • Oxygenated VOC profiles and solvent separations
  • Improving resolution vs DB-5/DB-1 type phases
  • Polar compounds requiring strong retention
Key Specifications
CategoryWAX / Oxygenates
Separation ModePolar (WAX)
Best ForPolar volatiles, oxygenates, solvents
Carbowax 20M / HP-20M
Classic PEG • polar volatiles • solvent & flavor applications

Carbowax 20M / HP-20M is a classic PEG WAX chemistry used for polar volatiles and oxygenates. It is commonly selected for solvent panels, flavor compounds, and general polar GC applications where PEG selectivity improves resolution.

When to Choose This Column
  • Polar VOC and oxygenate screening
  • Flavor and fragrance separations
  • Solvent profiling with strong polarity selectivity
Key Specifications
CategoryWAX / Polar volatiles
Separation ModePolar (PEG)
Best ForAlcohols, ethers, esters, polar solvents
HP-FFAP
Acid-modified PEG (FFAP) • free fatty acids • organic acids

HP-FFAP is an FFAP-type specialty phase designed for strong retention and improved peak shape of free fatty acids and organic acids. It is commonly used for fatty acid profiling and acidic volatile separations where standard WAX phases may show tailing or poor recovery.

When to Choose This Column
  • Free fatty acids and short-chain organic acids
  • Improved peak shape for acidic analytes
  • Food, fermentation, and biodiesel-related profiling
Key Specifications
CategoryFFAP / Organic acids
Separation ModePolar (acid-modified PEG)
Best ForFree fatty acids, volatile acids
DB-FFAP
FFAP acid phase • organic acids • fatty acids

DB-FFAP provides FFAP selectivity for acidic analytes, supporting strong retention and improved peak shapes for free fatty acids and organic acids. It is frequently selected for method development where acid analyte recovery and symmetry are critical.

When to Choose This Column
  • Organic acid profiling and free fatty acids
  • Acid-sensitive compounds needing improved recovery
  • Food and fermentation volatile acid analysis
Key Specifications
CategoryFFAP / Organic acids
Separation ModePolar (acid-modified)
Best ForVolatile acids, fatty acids
High Temperature
High-temp capable • high boiling analytes • reduced bleed focus

High Temperature specialty columns are engineered for elevated oven programs needed to elute higher-boiling compounds and heavy matrices. They are selected when standard columns cannot tolerate the thermal conditions required for late-eluting analytes.

When to Choose This Column Category
  • High-boiling SVOCs and heavy hydrocarbon fractions
  • Methods requiring elevated final oven temperatures
  • Reducing late-run bleed and improving baseline stability
Key Specifications
CategoryHigh temperature / High boilers
Primary BenefitThermal robustness for late-eluting compounds
Best ForHeavy SVOCs, oils, high-boiling residues
Petroleum
Hydrocarbon-focused • petrochemical profiling • robust screening

Petroleum specialty columns are designed for hydrocarbon and petrochemical workflows where volatility-driven separation, carbon-number distribution, and robust performance are priorities. They are commonly used for refinery, fuels, and industrial hydrocarbon profiling.

When to Choose This Column Category
  • Hydrocarbon profiling and carbon number distribution
  • Fuel, refinery, and petrochemical QC methods
  • Robust separations for complex hydrocarbon matrices
Key Specifications
CategoryPetroleum / Hydrocarbons
Separation ModePrimarily volatility-driven
Best ForFuels, hydrocarbons, petrochemical mixtures
Select Biodiesel
Biodiesel/FAME-focused • enhanced resolution • method-driven selection

Select Biodiesel columns are engineered for biodiesel characterization and FAME-related workflows. They are selected to improve resolution of complex ester mixtures, support compliance-style methods, and sharpen separations where conventional phases struggle with overlapping ester profiles.

When to Choose This Column Category
  • Biodiesel and FAME profile separations
  • Improving ester resolution and quantitation reliability
  • Method-driven fuel testing workflows
Key Specifications
CategoryBiodiesel / FAME
Primary BenefitEnhanced ester selectivity
Best ForBiodiesel characterization and QC
Amines
Basic compound focused • reduced adsorption • improved peak shape

Amines specialty columns are designed to improve peak shape and recovery for basic compounds that commonly interact with active sites. They are chosen to reduce tailing, stabilize retention, and improve quantitation of amines in complex matrices.

When to Choose This Column Category
  • Primary/secondary/tertiary amines with tailing issues
  • Improved recovery for basic analytes at trace levels
  • More reliable quantitation and peak symmetry
Key Specifications
CategoryBasic analytes / Amines
Primary BenefitReduced adsorption and tailing
Best ForBasic compounds requiring improved peak shape
Pesticides
Selective for pesticide panels • low bleed focus • regulatory workflows

Pesticides specialty columns are built to support common pesticide screening and confirmatory methods, prioritizing selectivity control, low bleed (for MS), and reliable recoveries for challenging analytes.

When to Choose This Column Category
  • Multi-residue pesticide screening and confirmation
  • GC/MS workflows requiring stable baselines (low bleed)
  • Improved separation of structurally similar pesticide compounds
Key Specifications
CategoryPesticides
Primary BenefitSelectivity and low-bleed performance for MS
Best ForRegulatory and high-throughput pesticide methods
PAH
PAH optimized • improved aromatic resolution • complex mixtures

PAH specialty columns are optimized for polycyclic aromatic hydrocarbon separation where aromatic selectivity, isomer resolution, and stable retention are critical. They are commonly used for environmental and industrial PAH monitoring workflows.

When to Choose This Column Category
  • PAH panels requiring improved isomer resolution
  • Environmental monitoring and industrial compliance workflows
  • Complex aromatic mixtures that coelute on general-purpose phases
Key Specifications
CategoryPAH / Aromatics
Primary BenefitImproved PAH isomer separation
Best ForComplex aromatic mixtures and confirmatory methods
Semivolatile
SVOC optimized • broad coverage • robust late-eluters

Semivolatile specialty columns are designed to deliver broad SVOC coverage with stable retention, good peak shape, and low background signal for MS workflows. They are selected for environmental and industrial SVOC panels where late-eluters and complex matrices are common.

When to Choose This Column Category
  • EPA-style SVOC panels and broad screening
  • Complex samples with many late-eluting compounds
  • Improved robustness and baseline stability for GC/MS
Key Specifications
CategorySVOC
Primary BenefitBroad semivolatile coverage
Best ForEnvironmental and industrial SVOC screening
Volatile
VOC optimized • fast separations • residual solvents

Volatile specialty columns are optimized for volatile organic compound separations where fast analysis, stable retention, and reliable early peak separation are critical. They are commonly used for residual solvent methods and VOC screening workflows.

When to Choose This Column Category
  • VOC panels and residual solvent screening
  • Fast cycle time methods with early eluters
  • Improved volatility-based separation control
Key Specifications
CategoryVOC / Residual solvents
Primary BenefitFast, stable early-peak separation
Best ForResidual solvents and VOC screening
Flavors & Fragrances
Oxygenates & terpenes • complex aroma profiles • selectivity tuning

Flavors & Fragrances specialty columns are selected to resolve complex aroma mixtures, including oxygenates, esters, terpenes, and related volatile components. They emphasize selectivity and peak shape in samples with many closely eluting compounds.

When to Choose This Column Category
  • Flavor, fragrance, and essential oil profiling
  • Complex oxygenate and terpene mixtures
  • Improved resolution of closely related aroma compounds
Key Specifications
CategoryFlavors & Fragrances
Primary BenefitEnhanced resolution in complex aroma profiles
Best ForTerpenes, esters, oxygenated volatiles
Life Sciences
Bioanalytical focused • complex matrices • reliable recoveries

Life Sciences specialty columns support bioanalytical and life science workflows where complex matrices, trace targets, and reliable recoveries matter. They are selected to improve method robustness and to help manage adsorption or matrix-driven peak issues.

When to Choose This Column Category
  • Bioanalytical screening and confirmatory GC methods
  • Trace targets in complex biological or pharmaceutical matrices
  • Improved recovery and peak shape for active compounds
Key Specifications
CategoryLife Sciences
Primary BenefitRobust performance in complex matrices
Best ForTrace bioanalytical targets and confirmatory methods
Metal Columns
Metal-clad / rugged • handling durability • demanding environments

Metal Columns emphasize rugged handling and durability in environments where traditional fused silica may be difficult to manage. They are selected for applications that benefit from improved robustness during installation, transport, or repeated column changes.

When to Choose This Column Category
  • Rugged labs needing improved handling durability
  • High-throughput environments with frequent column changes
  • Situations where fused silica breakage risk is a concern
Key Specifications
CategoryRugged / Metal-clad
Primary BenefitImproved handling durability
Best ForDemanding environments and frequent swaps
PLOT Columns
Porous layer open tubular • permanent gas & light hydrocarbons

PLOT Columns (porous layer open tubular) are engineered for permanent gases and very light hydrocarbons where conventional wall-coated open tubular phases may not retain small molecules effectively. They are selected for gas analysis, light hydrocarbon profiling, and specialized separations requiring porous adsorption behavior.

When to Choose This Column Category
  • Permanent gases and very light hydrocarbons
  • Gas analysis requiring strong retention of small molecules
  • Specialty separations that benefit from porous adsorption
Key Specifications
CategoryPLOT / Permanent gases
Separation ModePorous adsorption layer
Best ForPermanent gases, light hydrocarbons

Practical note: PLOT columns are application-specific and often require method tuning for carrier gas, flow, and oven programs.


DB-HeavyWax

High-capacity WAX (PEG-type) column for challenging oxygenates and heavier polar volatiles.

Highlights
  • High-capacity WAX selectivity
  • Handles complex oxygenate matrices
  • Great for heavier polar volatiles
DB-WAX & DB-WaxFF

Classic PEG WAX selectivity for oxygenates, solvents, and flavor compounds requiring strong polarity control.

Highlights
  • PEG/WAX polar selectivity
  • Excellent for oxygenates
  • Flavor & solvent profiling
DB-WAXetr

Trace-optimized WAX column designed to improve recovery and peak shape for active polar analytes.

Highlights
  • Improved inertness for traces
  • Sharper peaks for polar analytes
  • More reliable quantitation
HP-INNOWAX

HP-series WAX (PEG) workhorse for routine oxygenate separations and polar VOC profiling.

Highlights
  • Routine oxygenate workflows
  • Strong polar retention
  • Great for solvents & flavors
CP-WAX 52 CB

Polar WAX specialty column used to improve resolution of polar VOCs and oxygenated mixtures.

Highlights
  • Strong WAX selectivity
  • Improves polar VOC separation
  • Reduces oxygenate coelutions
Carbowax 20M / HP-20M

Classic PEG phase for polar volatiles, solvent panels, and flavor/fragrance separations.

Highlights
  • Classic PEG polarity
  • Great for polar volatiles
  • Solvent & aroma profiling
HP-FFAP

FFAP acid phase for free fatty acids and organic acids requiring improved peak shape and recovery.

Highlights
  • Organic & fatty acid focus
  • Improves acidic peak symmetry
  • Excellent for FFA methods
DB-FFAP

FFAP specialty column for volatile acids and fatty acids where standard WAX phases can tail.

Highlights
  • Strong retention for acids
  • Better recovery of FFAs
  • Food & fermentation workflows
High Temperature

Specialty columns engineered for elevated final oven temperatures and high-boiling analytes.

Highlights
  • High-boiling compound capability
  • Improved late-run robustness
  • Great for heavy matrices
Petroleum

Hydrocarbon-focused columns for fuels, refinery streams, and petrochemical profiling methods.

Highlights
  • Hydrocarbon profiling
  • Fuel & refinery workflows
  • Stable volatility-based separation
Select Biodiesel

Method-driven column family for biodiesel characterization and complex ester/FAME separations.

Highlights
  • Biodiesel/FAME focused
  • Improves ester resolution
  • Compliance-style workflows
Amines

Specialty columns designed to reduce tailing and adsorption for basic compounds and amine analytes.

Highlights
  • Improved peak shape for bases
  • Reduced adsorption/tailing
  • Better trace-level recovery
Pesticides

Selectivity-driven columns for multi-residue pesticide screening and confirmatory methods.

Highlights
  • Pesticide panel performance
  • Excellent for GC/MS methods
  • Improves critical separations
PAH

PAH-optimized specialty columns built to improve aromatic isomer resolution in complex samples.

Highlights
  • Improved PAH isomer separation
  • Strong aromatic selectivity
  • Environmental workflows
Semivolatile

SVOC-focused column family for broad screening methods with many late-eluting compounds.

Highlights
  • Broad SVOC coverage
  • Handles late-eluting targets
  • Great for complex matrices
Volatile

VOC-optimized column family for fast separations, early peak resolution, and residual solvents.

Highlights
  • VOC & residual solvent focus
  • Fast cycle times
  • Strong early-peak resolution
Flavors & Fragrances

Columns selected to resolve complex aroma mixtures, oxygenates, esters, and terpene profiles.

Highlights
  • Complex aroma resolution
  • Great for oxygenates & esters
  • Flavor/fragrance profiling
Life Sciences

Specialty columns for bioanalytical workflows needing reliable recovery and matrix-tolerant performance.

Highlights
  • Bioanalytical screening support
  • Improved recovery in matrices
  • Reliable peak shape control
Metal Columns

Rugged column formats designed for improved handling durability in demanding GC environments.

Highlights
  • Durable handling format
  • Great for frequent column swaps
  • Reduced breakage risk
PLOT Columns

Porous-layer open tubular columns for permanent gases and very light hydrocarbons.

Highlights
  • Permanent gas separations
  • Retains very light analytes
  • Specialty adsorption behavior

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SKU Name ID Length Phase Film Thickness
SKU
123-7112
Name
123-7112 - DB-HeavyWAX 15m, 0.32mm, 0.25um
ID
0.32 mm
Length
15 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
122-7163
Name
122-7163 - DB-HeavyWAX 60m, 0.25mm, 0.50um
ID
0.25 mm
Length
60 m
Phase
DB-HeavyWAX
Film Thickness
0.5 um
SKU
122-7162-INT
Name
122-7162-INT - DB-HeavyWAX 60m, 0.25mm, 0.25um, Intuvo
ID
0.25 mm
Length
60 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
122-7162
Name
122-7162 - DB-HeavyWAX 60m, 0.25mm, 0.25um
ID
0.25 mm
Length
60 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
122-7157
Name
122-7157 - DB-HeavyWAX 50m, 0.25mm, 0.20um
ID
0.25 mm
Length
50 m
Phase
DB-HeavyWAX
Film Thickness
0.2 um
SKU
122-7133-INT
Name
122-7133-INT - DB-HeavyWAX 30m, 0.25mm, 0.50um, Intuvo
ID
0.25 mm
Length
30 m
Phase
DB-HeavyWAX
Film Thickness
0.5 um
SKU
122-7133
Name
122-7133 - DB-HeavyWAX 30m, 0.25mm, 0.50um
ID
0.25 mm
Length
30 m
Phase
DB-HeavyWAX
Film Thickness
0.5 um
SKU
122-7132-INT
Name
122-7132-INT - DB-HeavyWAX 30m, 0.25mm, 0.25um, Intuvo
ID
0.25 mm
Length
30 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
122-7132
Name
122-7132 - DB-HeavyWAX 30m, 0.25mm, 0.25um
ID
0.25 mm
Length
30 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
122-7127
Name
122-7127 - DB-HeavyWAX GC column, 25m, 0.25mm, 0.20um
ID
0.25 mm
Length
25 m
Phase
DB-HeavyWAX
Film Thickness
0.2 um
SKU
122-7112
Name
122-7112 - DB-HeavyWAX 15m, 0.25mm, 0.25um
ID
0.25 mm
Length
15 m
Phase
DB-HeavyWAX
Film Thickness
0.25 um
SKU
121-7122
Name
121-7122 - DB-HeavyWAX 20m, 0.18mm, 0.18um
ID
0.18 mm
Length
20 m
Phase
DB-HeavyWAX
Film Thickness
0.18 um
Key Definitions
WAX / PEG Phase
A highly polar polyethylene glycol (PEG) stationary phase commonly used for oxygenates, alcohols, solvents, and flavor compounds. Provides strong retention of polar analytes.
FFAP (Free Fatty Acid Phase)
An acid-modified polyethylene glycol phase optimized for organic acids and free fatty acids, improving peak shape and recovery of acidic compounds.
High-Temperature Column
A GC column engineered to withstand elevated oven temperatures, enabling separation of high-boiling analytes and heavy matrices without rapid stationary phase degradation.
PLOT Column (Porous Layer Open Tubular)
A capillary GC column coated with a porous adsorbent layer rather than a liquid phase, designed for permanent gases and very light hydrocarbons.
VOC / SVOC
VOC (Volatile Organic Compounds) and SVOC (Semivolatile Organic Compounds) classifications describing analytes based on volatility, often associated with environmental regulatory methods.
PAH (Polycyclic Aromatic Hydrocarbon)
A class of multi-ring aromatic compounds commonly analyzed in environmental and petroleum samples, requiring strong aromatic selectivity and stable thermal performance.
FAME (Fatty Acid Methyl Ester)
Methyl ester derivatives of fatty acids commonly analyzed in biodiesel workflows to characterize fuel composition and quality.
Column Inertness
The ability of a GC column surface to resist adsorption or catalytic activity, resulting in improved recovery, better peak symmetry, and more reliable trace analysis.
Frequently Asked Questions
When should I use a WAX or PEG GC column instead of a non-polar phase?
WAX (PEG) phases are ideal for oxygenates, alcohols, aldehydes, ketones, esters, and other polar analytes. If compounds elute too early or coelute on a non-polar column, a WAX phase increases retention and improves resolution of polar functionality.
What is the benefit of an FFAP column?
FFAP (Free Fatty Acid Phase) columns are modified to improve recovery and peak shape of organic acids and free fatty acids. They reduce tailing and adsorption commonly observed with acidic compounds on standard PEG phases.
What applications require a high-temperature GC column?
High-temperature columns are selected for heavy hydrocarbons, high-boiling semivolatiles, and complex petroleum matrices. They maintain stability at elevated oven temperatures, reducing phase bleed and extending column lifetime.
When should I use a PLOT column?
PLOT (Porous Layer Open Tubular) columns are designed for permanent gases and very light hydrocarbons. They provide strong retention of small molecules that do not retain adequately on traditional liquid-phase columns.
Which specialty columns are best for pesticide or PAH analysis?
Pesticide and PAH specialty columns are engineered to enhance aromatic and isomer selectivity. They improve separation of structurally similar compounds and are frequently used in environmental and regulatory GC/MS workflows.
How do I choose the right Agilent J&W Specialty GC column?
Selection depends on analyte polarity, functional groups, volatility range, and regulatory requirements. Consider whether you need enhanced polar retention (WAX), acid stability (FFAP), hydrocarbon profiling (petroleum phases), permanent gas retention (PLOT), or high-temperature durability. Chrom Tech can help match column chemistry to your specific application and performance goals.