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Showing 1-30 of 54 results
HPLC Analysis of Barbiturates in Serum on Discovery® C18 after SPE using Discovery® DSC-18Lt
HPLC Analysis of Barbiturates in Serum on Discovery® C18 after SPE using Discovery® DSC-18Lt
Selective Extraction and Cleanup of Patulin Mycotoxin from Apple Juice Samples
This selective and fast MIP extraction procedure allows trace amounts of patulin to be easily detected in apple juice, with high analyte recovery and reproducibility.
Veterinary Drug Residues
The use of veterinary drugs may be integral to the process of raising food producing animals and fish. These can include antibiotics, hormones, and steroids.
Determination of Bisphenol A in Drinking Water
A comprehensive sample preparation and analytical procedure was developed by Supelco for determining BPA in drinking water.
Using UHPLC/MS (TOF) for Detection of Drugs and Metabolites in Urine Following Optimized Enzymatic Hydrolysis Conditions
To optimize hydrolysis using β-glucuronidase, factors such as incubation time, temperature, hydrolysis pH, enzyme source, and enzyme concentration must be evaluated for each glucuronide metabolite to be analyzed.
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.
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.
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
Controlling SPE Selectivity Through pH and Organic Modifier Manipulation
Controlling SPE Selectivity Through pH and Organic Modifier Manipulation
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%
Determination of Fipronil and Fipronil Sulfone in Food Using Purospher® STAR RP-18 Endcapped Column and UV Detection
broad spectrum insecticide, egradation product, phenylpyrazole pesticide, World Health Organization (WHO), HPLC, UV, testing of Fipronil and Fipronil sulfone in Food
HPLC Analysis of Paraquat and Diquat on SUPELCOSIL™ LC-18 after SPE using ENVI™-8 DSK
HPLC Analysis of Paraquat and Diquat on SUPELCOSIL™ LC-18 after SPE using ENVI™-8 DSK
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 Hydrocortisone from Topical Cream Using Discovery DSC-Si SPE and Reversed-Phase HPLC-UV
Using the method described in this report, an average absolute recovery and RSD value of 99.86 ± 6.99% (n=6) was observed, to determine an average of 1.02% hydrocortisone in topical cream.
Solid Phase Extraction: Normal Phase Methodology
Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
LC MS Analysis of Triclosan Irgasan in Waste Water
Protocol for LC MS Analysis of Triclosan Irgasan in Waste Water
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.
Fraction of cis/trans FAMEs Using Discovery® Ag-Ion SPE
Fraction of cis/trans FAMEs Using Discovery® Ag-Ion 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
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/MS Analysis of Aflatoxins in Hops on Ascentis® Express 2.7 μm Phenyl-Hexyl after Cleanup Using Supel™ Tox AflaZea SPE
GC Analysis of Phenols in Water on a 5% Phenyl Column after SPE using Supelclean™ ENVI-Chrom P
Separation of 2-Nitrophenol; Pentachlorophenol; 2-Bromophenol; Phenol; 4-Nitrophenol; 3-Methylphenol, analytical standard; 4-Chloro-3-methylphenol; 2,4-Dichlorophenol; 2,3,4,6-Tetrachlorophenol; 2-Methylphenol, analytical standard; 2,4,6-Trichlorophenol; 2,4-Dimethylphenol; 2-Chlorophenol
Aminoglycoside Analysis in Pork Muscle using Molecularly Imprinted Polymer Cleanup and LC/MS/MS Detection
Extraction and quantitative analysis of aminoglycosides in porcine tissue, using molecular imprinted polymer solid phase extraction followed by LC-MS/MS.
Determination of Organic Acids in Wine and Fruit Juices with Ion Exclusion Chromatography
The measurement of organic acids in wines is complementary to sensorial and microbiological quality assessment in fermentation control, for example, because the types and concentrations of the different acids influence the resulting color and taste of the wine.
LC/MS Analysis of Methamphetamine Enantiomers on Astec® CHIROBIOTIC® V2 in Urine after SPE using Supel™-Select SCX
LC/MS Analysis of Methamphetamine Enantiomers on Astec® CHIROBIOTIC® V2 in Urine after SPE using Supel™-Select SCX
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
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
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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