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Achieve Exceptional Resolution of PAHs, Including Several Isomer Sets Using SLB®-ILPAH Capillary GC Columns
SLB®-ILPAH is a special purpose column based on an ionic liquid stationary phase providing unique selectivity and efficient column dimensions allowing exceptional resolution of PAHs
Exactly Why is Low Bleed Important for Capillary Columns?
Exactly Why is Low Bleed Important for Capillary Columns?
GC Analysis of Neroli Essential Oil on SLB®-5ms
GC Analysis of Neroli Essential Oil on SLB®-5ms
The Derivatization and Analysis of Amino Acids by GC-MS
The Derivatization and Analysis of Amino Acids by GC-MS
Parabens in Topical Preparations Using SPME-GC-MS
Parabens in Topical Preparations Using SPME-GC-MS
Flame Retardant Analytical Standards
Flame Retardant Standards: PBDE Standards. Polybrominated diphenyl ether standards accompany our chromatography products for this important analysis.
SPME in the Analysis of Illicit Drugs
SPME is used in the analysis of amphetamine compounds by doing pre-extraction derivatization, and is also used in general determinations of other drugs of abuse.
Chiral GC Analysis of Carvone Enantiomers in Essential Oils
In this study we demonstrate the separation of D- and L-carvone enantiomers in samples of caraway seed, dill seed, native spearmint and scotch spearmint essential oils using an Astec CHIRALDEX G-TA capillary GC column.
How to Choose a Capillary GC Column
Achieve better gas chromatography separations with an appropriate column. Review the most significant factors for gc column selection: stationary phase, internal diameter, film thickness, and column length.
Comparison of QuEChERS Products for the Extraction of Planar Pesticides from Spinach
Supel™ QuE Verde combines a novel carbon with zirconia coated silica (Z-Sep+) to provide an optimum balance between planar pesticide recovery and color removal.
Extraction of Permethrin Pesticides from Spinach Using QuEChERS Methodology with Automated Shaking
Extraction of Permethrin Pesticides from Spinach Using QuEChERS Methodology with Automated Shaking
Improved GC/MS Derivatization Techniques for Analysis of New Designer Drugs: Methylone, Ethylone, Butylone, Mephedrone, and Methedrone
As new “bath salt” drugs such as methylone, ethylone, mephedrone, butylone and other methcathinone analogs increase in popularity, toxicologists require native and labeled certified reference materials to accurately identify and quantify the new compounds in patient samples.
Principal Component Analysis (PCA) Evaluation of Seven Commercial Ionic Liquid Capillary GC Columns
In order to cover a broad range of possible solute-stationary phase interactions, 95 solutes with varied functional groups were selected to perform stationary phase characterization.
Ionic Liquid GC Column Option for the Analysis of Omega 3 and Omega 6 Fatty Acids
Compared to existing ‘wax’ columns, the SLB-IL60 column offers unique selectivity, some cis/trans resolution, and faster elution for the analysis of omega 3 and omega 6 fatty acid methyl esters.
Analysis of Pesticide Residues in Pistachios Using QuEChERS Extraction and Cleanup with Supel™ QuE Z-Sep+
Pistachios contain approximately 45% fat, which can result in a significant amount of coextracted matrix in the acetonitrile extract generated using the QuEChERS procedure. A zirconia based adsorbent significantly reduces coextracted matrix prior to LC-MS or GC-MS.
Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS
Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS
SPME-GC-MS Determination of Phthalate Esters in Ramen Noodle Flavor Packets
A sensitive, quantitative, and reproducible SPME-GC/MS procedure was developed by Supelco for the extraction of phthalate esters from oily food matrices, such as the flavored oils included with ramen noodle kits.
GC Analysis of a 37-Component FAME Mix on Omegawax®
This technical article will discuss GC Analysis of a 37-Component FAME Mix on Omegawax.
GC Injection Port Septa: Use, Maintenance, Storage and Handling
Proper handling and preventative maintenance instructions for injection port septa; tips to improve the performance of gas chromatography instruments.
GC Analysis of C2-C7 Free Fatty Acids on Nukol™
Separation of Propionic acid; Acetic acid; Heptanoic acid; Isobutyric acid; Valeric acid; Isocaproic acid; Butyric acid; Isovaleric acid
200 Meter GC Columns for Detailed Analysis of cis/trans FAME Isomers
The SP-2560/SLB-IL111 column pairing allows for comprehensive and accurate (qualitative and quantitative) determinations of saturated and trans fatty acids.
US EPA Method 8041: GC Analysis of Phenols on Equity®-5
Separation of 2-Chlorophenol; 2,4-Dichlorophenol; 2,4,6-Tribromophenol; 2,4,6-Trichlorophenol; 2,4-Dinitrophenol; Pentafluorophenol; 2-Methylphenol, analytical standard; 2,3,4,6-Tetrachlorophenol; Pentachlorophenol; 4-Nitrophenol; 2-Bromophenol; 2,3,5,6-Tetrachlorophenol; 2,3,5-Trichlorophenol; 4-Chloro-3-methylphenol; 2,4,5-Trichlorophenol; 4-Methylphenol, analytical standard; 2,4-Dimethylphenol; 2-Nitrophenol; 3-Methylphenol, analytical standard; Phenol; 2-Methyl-4,6-dinitrophenol; 2,3,4-Trichlorophenol; 2,6-Dichlorophenol; 2,3,4,5-Tetrachlorophenol
GC Analysis of Class 3 Residual Solvents on OVI-G43
Butyl methyl ether; Acetic acid; 2-Butanone; Ethyl acetate; Tetrahydrofuran; 1-Butanol; Isopropyl acetate; Heptane; Propyl acetate; 3-Methylbutanol; 4-Methyl-2-pentanone; Isobutyl acetate; Butyl acetate; Dimethyl sulfoxide; Anisole; Cumene
GC Analysis of C2-C22 Free Fatty Acids on Nukol™
Separation of Methyl oleate; Caprylic acid; Heptanoic acid; Methyl decanoate; Methyl dodecanoate; Myristic acid; Methyl palmitate; Methyl palmitoleate; Methyl stearate; Methyl linoleate; Methyl linolenate; Acetic acid; Arachidic acid; Behenic acid; Propionic acid; Isobutyric acid; Valeric acid; Isovaleric acid; Isocaproic acid;
Melamine Analysis via GC-MS
Sigma-Aldrich presents an article about the analysis of melamine and related compounds in dog food with the use of more economical gas chromatography-mass spectrometry (GC-MS) instrumentation.
Separation of Alcohols and Esters in Spirits using Serially Connected GC Columns
Separation of Alcohols and Esters in Spirits using Serially Connected GC Columns
GC Injection Port Issues: Two Case Studies (Peak Tailing and Low Response)
Proper product selection and preventative maintenance for the GC inlet are vital elements that impact performance of the GC instrument.
Proline Derivatization and Enantioresolution by Chiral GC
Amino acids are building blocks of peptides and proteins. Enantiomeric separation of these molecules can be performed through chromatography by chiral stationary phases. This article describes the chiral GC analysis of one amino acid, proline, after achiral derivatization.
Bioethanol
Learn more about Bioethanol as a renewable, alternative fuel traditionally produced by the yeast fermentation of sugar.
The Use of Derivatization Reagents for GC
The Use of Derivatization Reagents for GC
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