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Showing 1-30 of 112 results

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.

Determination of l- and d-Lactic Acid Enantiomers by HPLC/MS/MS

Rapid, simple, reproducible chiral separation and quantification of L- and D-lactic acid enantiomers using Supelco’s Astec CHIROBIOTIC® R chiral column and tandem MS.

LC/MS Analysis of Aflatoxin M1 in Milk on Ascentis® Express HILIC after SPE using Supel™ Tox AflaZea, Quantifying Picogram Concentrations

Protocol for LC/MS Analysis of Aflatoxin M1 in Milk on Ascentis® Express HILIC after SPE using Supel™ Tox AflaZea, Quantifying Picogram Concentrations

Online SPE/LC-MS Method for the Rapid Analysis of Thyroid Hormones in Plasma

Determination of the thyroid hormones T4, T3 and rT3 from plasma using an Ascentis Express RP-Amide cartridge to trap the analytes, and a Phenyl-Hexyl column to resolve them.

LC/MS Analysis of Methamphetamine Enantiomers on Astec® CHIROBIOTIC® V2 in Urine after SPE using Supel™-Select SCX

LC/MS Analysis of Phospholipids in Milk on Ascentis^® Express HILIC after SPE using Supelclean^™ Si, Shotgun HPLC Analysis

(soybean), ≥97%; L-α-Phosphatidylethanolamine from egg yolk, Type III, ≥97% (TLC), lyophilized powder; L-α-Phosphatidylcholine, from egg yolk, Type XVI-E, ≥99% (TLC), lyophilized powder; Sphingomyelin, from chicken egg yolk, ≥95%

Analysis of Melamine in Milk

Melamine was extracted from milk using Supelco® Discovery® DSC-SCX SPE tubes. Analysis was performed by HPLC, using an Ascentis® Express HILIC column.

Determination of PAHs in Paprika Powder Using a Novel SPE Cartridge

Paprika is a spice made from dried sweet peppers, and is used for flavor and color in many types of cuisine. Contamination with polynuclear aromatic hydrocarbons (PAHs) can occur when pepper plants are exposed to these pollutants in the environment

Rapid, Sensitive, and Quantitative LC/MS/MS Determination of Digitoxin and Digoxin in Plasma

Immunoassay-based methods for digitoxin or digoxin exist, but are time consuming, labor intensive, and not selective due to similarities in their chemical structures.

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.

Headspace SPME-GC/MS Analysis of Terpenes in Hops and Cannabis

Terpenes are present in essential oils derived from plants and often impart characteristic aromas to the plant or its oil. The SPME is a convenient, efficient, and easy to automate sample preparation technology for analyzing the terpene/terpenoid profile of these

LC/MS/MS Analysis Using On-line Cartridges for the Removal of Phospholipids from Protein Precipitated Biological Fluid Samples

Learn more about LC/MS/MS Analysis using on-line cartridges for the removal of phospholipids from protein precipitated biological fluid samples

LC/MS/MS Analysis of Steroid Hormones in Plasma

The conversion of clinical methods to LC/MS/MS offers advantages; however, is accompanied by a few limitations, notably interference effects from the endogenous sample matrix.

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

Workflow for High-Throughput Glycoprofiling of Rituximab

Step-by-step SEC-MS protocol for rapid glycoprofiling of a monoclonal antibody (mAb), consisting of antibody purification, a mAb reduction procedure, a mass spectrometer calibration, and a system suitability test.

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).

LC-UV-MS Method Development for Antibody Drug Conjugates Using a Non-Toxic ADC-Mimic

SigmaMab Antibody Drug Conjugate Mimic, is a non-toxic drug mimic utilized as a standard for mass spectrometry and high performance liquid chromatography.

Protocol for Purification, Optional Reduction, and SEC-MS Analysis of a Monoclonal Antibody

A complete workflow for the intact and middle-up mass analysis of reduced and non-reduced monoclonal antibodies based on SEC-MS with sample preparation by protein-A affinity clean-up.

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

Fast and Reliable Environmental Analysis of Aldehyde and Ketone Air Pollutants

Aldehydes and ketones are ubiquitous air pollutants. Along with esters and ethers, they are major components of indoor air pollution and are therefore important for industrial hygiene applications.

Developing a Quantitative SPME Method

LC MS Analysis of Triclosan Irgasan in Waste Water

Protocol for LC MS Analysis of Triclosan Irgasan in Waste Water

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

GC Analysis of Sterols (Silylated Derivatives) in Olive Oil (Free Sterol Fraction) on SLB®-5ms after SPE using Discovery DSC-Si

Separation of Cholesterol; Brassicasterol; Campesterol; Stigmasterol; β-Sitosterol

GC Analysis of Volatiles in Milk on Supel-Q™ PLOT after SPME using a 75 µm PDMS/Carboxen Fiber

Separation of 4-Methyl-2-pentanone; Dimethyl disulfide; Hexanal; 3-Methylpentane; Acetone

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

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 (TOF) Analysis of Illicit Bath Salts in Urine on Ascentis® Express HILIC After Solid Phase Extraction (SPE) Using Supel™-Select SCX

Separation of 3,4-Methylenedioxypyrovalerone HCl (MDPV) solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; Buphedrone hydrochloride solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; 3-Fluoromethcathinone hydrochloride solution

GC Analysis of Terpenes in Hops (Cascade Variety) on Equity^®-1 after Headspace SPME using 50/30 µM DVB/CAR/PDMS Fiber

-ß-Farnesene; Humulene; γ-Muurolene; γ-Selinene; Geranyl isobutyrate; ß-Selinene; a-Muurolene; a-Selinene; γ-Cadinene; Calamenene; Δ-Cadinene; Caryophyllene oxide; Humulene oxide

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