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Showing 1-30 of 115 results
HPLC Analysis of Carotene Compounds on Ascentis® RP-Amide
HPLC Analysis of Carotene Compounds on Ascentis® RP-Amide
Online Solid Phase Extraction and LC-MS Analysis of Thyroid Hormones in Human Serum
Thyroid hormones play critical roles in the regulation of biological processes, such as growth, metabolism, protein synthesis, and brain development. For a clinical laboratory, fast and reliable measurements of total hormone levels are important for the diagnosis and monitoring of...
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
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
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 Drugs in Plasma on Ascentis® Express C18 after Extraction using SPME LC Tips
LC/MS/MS Analysis of Drugs in Plasma on Ascentis® Express C18 after Extraction using SPME LC Tips
Enrichment of Phospholipids in Biological Samples Using HybridSPE-PL
A simple method to enrich phospholipids from plasma samples, involving a HybridSPE-PPT 96-well plate that both retains phospholipids and removes precipitated proteins.
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.
LC MS Analysis of Triclosan Irgasan in Waste Water
Protocol for LC MS Analysis of Triclosan Irgasan in Waste Water
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.
Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS
Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS
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
Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection
Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection
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 Benzalkonium Chloride in Commercial Disinfecting Wipes on Ascentis® Express HILIC
Technical article on HPLC Analysis of Benzalkonium Chloride in Commercial Disinfecting Wipes on Ascentis® Express HILIC
Catalyst Screening followed by TLC-MS for Reaction Progress Analysis using KitAlysis™
Catalyst screening, KitAlysis™ High-Throughput Screening Kits, Thin layer chromatography (TLC), parallel analysis, parallel synthesisigh-Throughput Buchwald-Hartwig Amination Reaction Screening Kit, TLC-MS analysis
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.
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.
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.
Fast Extraction and Low Level Detection of Chloramphenicol in Shrimp
A highly selective and sensitive analytical method was developed for chloramphenicol using a QuEChERS type sample preparation approach and LC-MS/MS detection.
Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms Using Supel™ QuE and Ascentis® Express
Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms Using Supel™ QuE and Ascentis® Express
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.
Analysis of a Bispecific Monoclonal Antibody Using Size Exclusion Chromatography and Mass Spectrometry
Bispecific antibodies are a new class of biotherapeutics where one therapeutic agent can target two different antigens. This application note demonstrates a new size exclusion chromatographic method for characterizing these new biotherapeutics by mass spectrometry.
Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler
The unique sampler design ensures that both the vapor phase and particulate isocyanates are captured and derivatized during sampling.
Fast and Accurate LC-MS Analysis of Vitamin D Metabolites Using Ascentis® Express F5 HPLC Columns
Fast and Accurate LC-MS Analysis of Vitamin D Metabolites, Using Ascentis® Express F5 HPLC Columns from Supelco®
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