Measurement of acetic acid vapor in the workplace using passive sampling SPME and on-fiber derivatization with 1-pyrenyldiazomethane: Comparison with active sampling.

GC Analysis of PBDE Flame-Retardant Compounds

Determination of Quinine in Tonic Water and Caffeine in Coffee and Cola Drinks Using TLC-MS

HPTLC–MS analysis of quinine in tonic water and caffeine in coffee and cola drinks. Tonic and cola drinks decarbonized through ultrasonication, and coffee extracted through PTFE filter.

Qualitative Thin Layer Chromatography Analysis Ginkgo

Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets

Determination of Lactose in Dairy Products Using TLC-MS

Straightforward HPTLC-MS analysis of lactose in dairy products (milk or yoghurt) using only protein crash, centrifugation and dilution as sample preparation.

Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection

Insulin is an approximately 6000 Da peptide hormone used to regulate the glucose concentration in blood. There are several different forms of insulin that are both natural and recombinant; the recombinant forms have been engineered to improve pharmacokinetic properties. A

LC/MS Analysis of Nucleotides on SeQuant ZIC-cHILIC

HILIC separation is an alternative that permits sensitive MS detection and without the use of ion-pair reagents.

HPLC Analysis of Isocyanates on Titan™ C18

Fast LC-MS-MS Analysis of 25-Hydroxyvitamin D2 and 25-Hydroxyvitamin D3

We presents a robust method for analyzing 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 in serum using a multiplexed LC-MS-MS system.

Metabolites – A Serious Challenge for LC/MS Separations and Usual Detection Techniques

We offer the tools for the analysis of the metabolites; including certified reference standards, enzymes, substrates, and chromatographic products.

GC Analysis of Aldehydes (PFBOA Derivatives) in Beer on SLB®-5ms after SPME using a 65 µm PDMS/DVB Fiber

Separation of null

Antibody Drug Conjugate Mimic Enables LC-MS Method Development Without Risk

Here we show how LC and MS methods may be optimized using a non-toxic surrogate of the ADC, an “ADC-mimic”, that behaves very similarly to the Cys-linked ADC Adcetris (Seattle Genetics).

Mass Spectrometry Metabolite Library Protocol

MSMLS™ (Mass Spectrometry Metabolite Library of Standards) is a collection of high quality small biochemical molecules that span a broad range of primary metabolism. These are high purity (>95%) compounds supplied in an economical, ready-to-use format.

radiello® Diffusive Air Sampling Application - Volatile Organic Compounds (VOCs) Thermally Desorbed

Volatile organic compounds are trapped by adsorption and recovered by thermal desorption, analysis is performed by capillary gas chromatography and FID or MS detection.

GC/MS Analysis of Ethanol in Low Alcohol Beer on SUPELCOWAX® 10 after Headspace SPME using a 100 µm PDMS Fiber

GC/MS Analysis of Ethanol in Low Alcohol Beer on SUPELCOWAX® 10 after Headspace SPME using a 100 μm PDMS Fiber

Clinical Application of SPME: Analysis of VOCs in Exhaled Breath as Cancer Biomarkers

This report demonstrates the potential of solid phase microextraction as a clinical research tool for the extraction of VOCs associated with lung cancer from human breath.

Performing a Separation with Sephacryl®

This page shows how to perform a separation with a sephacryl column from Cytiva which are Size Exclusion Chromatography media prepared by covalently cross-linking allyl dextran with N,N’-methylene bisacrylamide.

Chiral LC-MS/MS of D- and L-2-Hydroxyglutaric Acid Biomarkers

We describe here a rapid and sensitive method to separate and measure D-2-OHG and L-2-OHG enantiomers using high-resolution mass spectrometry (HRMS) detection.

Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB®-5ms after SPME using 50/30 µm DVB/Carboxen/PDMS Fiber

Separation of 2-Isopropyl-3-methoxypyrazine 20 ppt; 2-Isobutyl-3-methoxypyrazine; 2-Methylisoborneol; (±)-Geosmin 10 ppt

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