Solid phase extraction

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facet applications:Solid phase extraction

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Accurate Biological Testing for Amphetamine and Methamphetamine Abuse Using Chiral HPLC and MS Detection

Optimized sample prep and chiral chromatography methods for the LC/MS analysis of these drug enantiomers in urine

Reversed-Phase SPE Methodology in Solid Phase Extraction. Reversed-phase SPE is considered the least selective retention mechanism when compared to normalphase or ion-exchange SPE.

ENVI-Carb Plus for the Extraction of Propylene Glycol and Ethylene Glycol from Water

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

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%

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.

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.

Acrylamide in Food

Acrylamide analysis has been a very hot topic since the chemical was identified in food in 2002 by researchers at the Swedish National Food Administration.

LC/MS Analysis of Opioid Glucuronide Metabolites in Urine on Ascentis® Express F5 after Solid Phase Extraction (SPE) using Supel™-Select HLB

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.

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

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/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 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

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.

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.

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.

Determination of Bisphenol A in Drinking Water

A comprehensive sample preparation and analytical procedure was developed by Supelco for determining BPA in drinking water.

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

Extraction and Analysis of Lasix (Furosemide) in Horse Serum

Studies have suggested that there is a correlation between furosemide and improved racing performance, prompting the horse racing industry to monitor the use of this drug

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.

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

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.

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.

LC/MS (TOF) Analysis of Drugs and Their Glucuronide Metabolites in Urine on Titan™ C18 After Solid Phase Extraction (SPE) Using Supel™-Select SCX, β-Glucuronidase Enzyme Digestion

-THC solution, 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material

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

solution, 2 μg/mL in acetonitrile, analytical standard

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

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.

Controlling SPE Selectivity Through pH and Organic Modifier Manipulation

Fraction of cis/trans FAMEs Using Discovery^® Ag-Ion SPE

Fraction of cis/trans FAMEs Using Discovery® Ag-Ion SPE

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