Mass spectrometry

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facet applications:Mass spectrometry

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Banned and Other Neonicotinoids from Plant Material

On Friday, April 27, 2018, the European Union decided to ban the use of three neonicotinoid insecticides from use on field crops, having deemed them dangerous to bees. This application demonstrates the analysis of these banned compounds and others from

Developing a Quantitative SPME Method

Rapid Separation of Anthocyanins and Flavonol Glycosides Utilising Discovery® DSC-MCAX Solid Phase Extraction

Flavonols and anthocyanins are water-soluble vacuolar flavonoid compounds that are synthesized by organisms of the plant kingdom.

LC/MS/MS Analysis of Aflatoxins in Hops on Ascentis® Express 2.7 μm Phenyl-Hexyl after Cleanup Using Supel™ Tox AflaZea SPE

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

Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS

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.

An Alternative to the USP and EP Methods for the Analysis of Riboflavin (Vitamin B₂) and Impurities

An MS-compatible alternative to the USP and EP methods, with improved specificity and reduced analysis time.

LC/MS Analysis of L-Methionine Sulfoximine and Sulfone on Ascentis® Express OH5

Separation of L-Methionine sulfone; L-Methionine sulfoximine

US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

US EPA Method 8260 describes the analysis of volatile organic compounds in solid wastes and ground waters. This application illustrates the analysis of many compounds commonly analyzed by this method using purge and trap coupled to GC-MS.

LC/MS Analysis of Glyphosate and Metabolites on apHera™ NH2, 2 mm I.D. Column

Protocol for LC/MS Analysis of Glyphosate and Metabolites on apHera™ NH2, 2 mm I.D. Column

Biological Testing for Amphetamine and Methamphetamine Abuse

In this study, optimized methods are presented for sample preparation and chiral chromatography for the LC/MS analysis of amphetamine and methamphetamine enantiomers in urine.

LC/MS/MS Analysis of Pesticide Residues in Pistachios on the Ascentis® Express RP-Amide Column after QuEChERS Extraction

LC/MS/MS Analysis of Interacting Cardiac Drugs Digoxin, Quinidine, Amiodarone and Verapamil on Titan™ C18

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

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.

Workflow for Preclinical Monoclonal Antibody Quantification

Pharmacokinetic (PK) kit enables a robust, high-throughput assay for quantification of human IgG1 antibody in animal sera by LC-MS/MS.

LC/MS Analysis of L-Methionine Sulfoximine, Sulfone and Sulfoxide on Ascentis® Express HILIC

Separation of L-Methionine sulfone; L-Methionine sulfoximine; L-Methionine sulfoxide

Flow-Modulation Comprehensive 2D GC/MS for the Determination of Allergens in Fragrances

The proposed method appears to be reliable and sensitive for the determination of allergens in perfumes, following the SCCNFP Opinion.

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

HPLC Analysis of Dopamine and Related Compounds on Discovery® HS

Protocol for HPLC Analysis of Dopamine and Related Compounds on Discovery® HS

GC Analysis of PBDE Flame-Retardant Compounds

Analysis of Human Plasma Lipids Using sub-2 μM C18 UHPLC Column with MS Detection

A comprehensive platform for lipidomics studies by LC/MS, applied without any modification in conditions and suitable to both ESI and APCI interfaces.

Empowering biochemists to analyze glycoproteins with exceptional reproducibility

Fast, high-resolution separations of procainamide labeled glycans - dextran ladder, human IgG and cetuximab

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).

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.

Analysis of Vitamin D in Milk and Infant Formula using UHPLC/MS/MS per AOAC Method 2011.11

While quantitative analysis was performed for Vitamins D2 and D3, the samples were scanned for the presence of the 25-hydroxy metabolites.

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.

Quantifying Picogram Concentrations of Aflatoxin M1 in Liquid Milk Using SPE Cleanup and LC/MS Analysis

Fast method for the cleanup, analysis, and quantification of aflatoxin M1 in milk samples to EU regulatory standards (0.025 μg/kg).

Determination of Triclosan in Environmental Waters

Triclosan was detected in waste water plant discharge using HPLC followed by UV and MS/MS detection.

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