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GC Analysis of Bacterial Acid Methyl Esters (BAMEs) on Equity®-1
Protocol for GC Analysis of Bacterial Acid Methyl Esters (BAMEs) on Equity®-1
GC Analysis of Grob Test Mix SLB IL76i
GC Analysis of Grob Test Mix on SLB®-IL76i
New GC-MS Method for Mycotoxin Analysis
An article regarding A New GC-MS Method for Mycotoxin Analysis Using 13C-marked Mycotoxin Derivatives from Sigma-Aldrich.com
GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 µm DVB/Carboxen/PDMS Fiber
-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde
Dual-Column GC Analysis of Organochlorine Pesticides on SLB®-5ms and SLB®-35ms
The primary column is used to determine presence of the target analytes in the sample; the secondary column of a different selectivity confirms whether a positive match.
ENVI-Carb Plus for the Extraction of Propylene Glycol and Ethylene Glycol from Water
ENVI-Carb Plus for the Extraction of Propylene Glycol and Ethylene Glycol from Water
US EPA Method TO-17: GC Analysis of Volatiles on VOCOL® after Collection/Desorption using Air Toxics Tube
US EPA Method TO-17: GC Analysis of Volatiles on VOCOL® after Collection/Desorption using Air Toxics Tube
GC Analysis of Lemon Essential Oil on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 µM), Fast GC Analysis
-3,7-Dimethyl-2,6-octadien-1-ol; Neral; Geraniol; Geranial; Undecanal; Citronellyl acetate; Neryl acetate; 3,7-Dimethyl-2,6-octadienyl acetate; 1-Tetradecene; Tetradecane; α-Bisabolol
GC Analysis of D-Carvone Enantiomer in Caraway Essential Oil on Astec® CHIRALDEX® G-TA
GC Analysis of D-Carvone Enantiomer in Caraway Essential Oil on Astec® CHIRALDEX® G-TA
GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10
Protocol for GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10
Choosing the Proper Activated Alumina PLOT Column
The recent addition of Alumina sulfate and Alumina chloride columns to the Supelco family of GC capillary PLOT columns has prompted several customer inquiries on why we offer two alumina chemistries and how to chose between the two. We present...
Improved Resolution of Benzene, Other Aromatics and Oxygenates in Reformulated Gasoline Using a One-Column Approach
The SLB-ILD3606 column is able to resolve benzene and toluene from oxygenates (alcohols, ketones, ethers) and the aliphatic portion of gasoline.
Syringe Care
Syringes are precision instruments and need care. Learn to correctly inspect, use, unclog, handle, clean and store them to ensure good accuracy, reproducibility, and lifetime.
EN 14105: GC Analysis of Glycerin Impurity in Biodiesel on MET-Biodiesel
EN 14105: GC Analysis of Glycerin Impurity in Biodiesel on MET-Biodiesel
Capillary Column Ferrule Selection and Installation
To provide a leak-tight seal, the ideal gas chromatography (GC) ferrule will accommodate column outside diameter (O.D.) variations, seal with minimum torque, and not stick to the column or fi ttings
FAME Standard for Optimizing GC System Performance
AOCS and AOAC methods for determining the trans fatty acid composition of foods by gas chromatography require the use of a highly polar cyanosilicone capillary column to provide the best peak resolution attainable of the numerous geometric (cis & trans)...
Determination of Headspace Volatiles in Distilled Spirits Using SPME Coupled to GC
In this article, SPME-GC was successfully used to identify many volatile compounds present in the headspace over several spirits.
Standards for ISO 18857-2
Analysis of alkylphenols and alkylphenol ethoxylates: Sigma-Aldrich is pleased to offer the complete range of labeled compounds listed in ISO 18857-2 for the analysis of OP, NP and their mono- and diethoxylates.
GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 µm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
GC Analysis of Terpenes in Cannabis on Equity-1 after Headspace SPME
-ß-Farnesene; Humulene; Alloaromadendrene; a-Curcumene; ß-Selinene; a-Selinene; ß-Bisobolene; a-Bulnesene; Selina-3,7(11)-diene; Caryophyllene oxide ; Humulene oxide; Caryophylla-3,8(13)-dien-5-ol A
Fraction of cis/trans FAMEs Using Discovery® Ag-Ion SPE
Fraction of cis/trans FAMEs Using Discovery® Ag-Ion SPE
GC Analysis of Free Fatty Acids in Parmesan Cheese using Nukol™ after SPME using 65 μm Carbowax/DVB Fiber
In this study, SPME was used for the analysis of free fatty acids in Parmesan cheese using a 65 μm Carbowax/divinylbenzene (DVB) SPME fiber. Headspace extraction of the cheese sample was conducted at 65 °C for 15 minutes and analyzed...
Measurement of acetic acid vapor in the workplace using passive sampling SPME and on-fiber derivatization with 1-pyrenyldiazomethane: Comparison with active sampling
Measurement of acetic acid vapor in the workplace using passive sampling SPME and on-fiber derivatization with 1-pyrenyldiazomethane: Comparison with active sampling.
Extraction and Analysis of PAHs from Grilled Hamburger
A QuEChERS approach was effectively used to extract PAHs from grilled hamburger meat; the SPB-608 GC column provided the selectivity necessary to resolve all but one isomeric set.
US EPA Method 8270 (Appendix IX): GC Analysis of Semivolatiles on Equity®-5 (30 m x 0.25 mm I.D., 0.50 μm)
US EPA Method 8270 (Appendix IX): GC Analysis of Semivolatiles on Equity®-5 (30 m x 0.25 mm I.D., 0.50 μm)
ASTM D3612-96: GC Analysis of Transformer Gas on Carboxen®-1010 PLOT
Separation of Hydrogen; Oxygen; Nitrogen; Carbon monoxide; Methane; Carbon dioxide; Acetylene; Ethylene; Ethane
GC Analysis of cis/trans C18:1, C18:2, and C18:3 FAME Isomers on SP™-2560
Technical article on GC Analysis of cis/trans C18:1, C18:2, and C18:3 FAME Isomers on SP™-2560
GC Analysis of Fermentation Compounds on a Packed Column (6.6% Carbowax® 20M on 80/120 Carbopack™ B AW)
Separation of Acetone; Acetic acid; Propionic acid; Ethyl butyrate; Ethanol; Isoamyl acetate; Isobutyric acid; 3-Methyl-2-butanol; Methyl acetate; 1-Propanol; Acetal, ≥98%, FG; 2-Methyl-1-pentanol; Butyl acetate; Ethyl propionate; 3-Pentanol; 2-Pentanol, 98%; Ethyl isobutyrate; Isobutyl acetate; Acetaldehyde; Furfural; Butyric acid; Methanol; Ethyl acetate
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