Solid phase extraction

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facet applications:Solid phase extraction

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LC/MS/MS法测定谷物中的草甘膦、AMPA和草铵膦

使用 HPLC 和 SPE 的离子交换聚合物基颗粒测定燕麦片和婴儿谷物中的草甘膦及相关化合物。获得低水平的检测结果。

离子交换方法

离子交换法在固相萃取中的应用、抗衡离子选择性和离子交换及基本步骤。

使用分子印迹聚合物SPE提取安非他明及相关药物

用于药物分析的Supel-Select HLB SPE

Select HLB SPE是一种亲水性聚合物相，用于从水性基质中提取分析物。在本文中，它将用于从血浆中提取他汀类药物，以及从饮用水中提取48种药物分析物。

Supel™ Swift HLB SPE小柱‒轻松进行固相萃取（SPE）

Supel™Swift HLB SPE是一种具有亲脂性和亲水性官能团的聚合物吸附剂，可用于对各种极性不同的分析物进行固相萃取。它可以节省时间，实现更快的流速以及极低的信号增强/抑制比。

Solid Phase Extraction: Ion Exchange Methodology

SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.

Ion-Suppression & Phospholipid Contamination

We are presenting an article focusing on ion-suppression and phospholipid contamination and some of their major causes and difficulties.

Ion Exchange Methodology

Ion Exchange Methodology in Sold Phase Extraction, Counter Ion Selectivity & Ion Exchange and the basic steps.

Supel™-Select Polymeric SPE

Supel-Select HLB SPE - a hydrophilic modified styrene based polymer developed for the solid phase extraction of a broad range of compounds from aqueous samples.

The Effect of Container Materials on Production of Light Induced Off-Flavors in Milk – A Study Using SPME-GC-MS

Various plastics used as barriers to the production of off-flavors in light exposed milk were examined using HS-SPME with a new Carboxen®/PDMS coated Nitinol fiber followed by GC-MS analysis allowing detection of low MW analytes at levels <1 ng/mL.

Chiral and Achiral LC-MS Analysis of Warfarin™ in Plasma Samples

Clinical laboratories are beginning to reap the benefits of LC-MS in terms of its sensitivity, specificity, throughput, and potential to reduce cost per sample. The purpose of this study was to demonstrate the LC-MS analysis of Warfarin in plasma samples

HybridSPE-Phospholipid Technology

This Sigma-Aldrich article discusses how the HybridSPE-Phospholipid Technology works and how the phospholipids are removed.

Supel™ Swift HLB SPE Cartridges ‒ Solid Phase Extraction (SPE) Made Easy

Supel™ Swift HLB SPE is a polymeric sorbent with lipophilic and hydrophilic functional groups used for solid phase extraction of a wide range of analytes with different polarities. It saves time, offers faster flow rates, and minimum signal enhancement/suppression.

Analysis of Drugs of Abuse in Urine After Cleanup with HLB Solid Phase Extraction 96-well Plates

This article validates the ability to perform cleanup of urine samples using HLB solid-phase extraction (SPE) for the analysis of opioids via tandem mass spectrometry (LC-MS/MS) after cleanup with the Supel™ Swift HLB 96-well plate.

Steroid Hormone Analysis in Serum using Supel™ Swift HLB DPX Tips

This application note describes an accurate and sensitive, Supel™ Swift HLB DPX Tips based analysis of a total of 9 steroids (cortisone, cortisol, 11-deoxycortisol, androstenedione, testosterone, dehydroepiandrosterone, 5α-dihydrotestosterone, 17α-hydroxyprogesterone, and progesterone) in blood serum samples using two different standards (UTAK

LC-MS Analysis of PFAS Compounds in EPA Method 533 using Supelclean™ ENVI-WAX™ SPE

Learn how method EPA 533 is used for sample collection and preparation, featuring Supelclean™ ENVI-WAX™ SPE cartridges for LC-MS analysis on an Ascentis® Express PFAS HPLC Column.

Complete Workflow for the Analysis of California List of Pesticides in Cannabis by LC-MS/MS and GC-MS/MS

To show product safety, it is mandatory to test cannabis flowers for the presence of pesticides. In this article, we show a complete workflow for sample preparation and analysis of cannabis for the pesticides registered in California, by LC-MS/MS and

Sample Cleanliness Using BioSPME

Learn about Supel™ BioSPME C18 96-pin tool to prepare a clean sample with minimal matrix effects for an LC-MS/MS analysis from human plasma and its comparison with acetonitrile-based precipitation.

LC-MS Analysis of Serum for a Wide Analyte Range Using a Novel HLB SPE Phase

Analysis of 20 pharmaceutical compounds in calf serum using Supel™ Swift HLB SPE cartridge for cleanup and LC-MS determination and another commercially available HLB cartridge for comparison.

Mixed-Mode SPE Improves Extraction of Pharmaceutical Compounds from Biological Fluids

Analysis of Pesticide Residues in Ginger Powder Using QuEChERS Extraction and Clean-up with a Novel Dual Layer SPE Cartridge

The odor and pungency of ginger is due to the presence of terpenes, gingerols and shogaols. These compounds contribute to the highly complex matrix of ginger, which subsequently presents a challenge in low level analyses of contaminants. A novel 2-layer

Ion-Exchange SPE Methodology

Normal-Phase Methodology in Solid Phase Extraction Microbiology. In order g003572 for polar retention to occur between the sorbent and the sample, the analyte must be introduced to the SPE device in a non-polar sample or mobile phase environment.

Solid Phase Extraction (SPE) Overview

Solid phase extraction is a form of digital (step-wise) chromatography designed to extract, partition, and/or adsorb one or more components from a liquid phase (sample) onto stationary phase (sorbent or resin).

LC/MS/MS Method for Determination of Glyphosate, AMPA, and Glufosinate in Cereals

Glyphosate and related compounds are measured in oatmeal and infant cereal using ion-exchange polymer-based particles for HPLC and SPE. Low level detection was obtained.

Two Distinct Sample Prep Approaches to Overcome Matrix Effect in LC/MS of Serum or Plasma Samples

This article highlights the impact that sample matrix effects can have on LC/MS response and discusses two novel approaches to reduce it.

Solid Phase Extraction: Reversed-Phase Methodology

Reversed-phase interaction will retain most molecules with hydrophobic character; it is very useful for extracting analytes that are very diverse in structure within the same sample.

Impact of Mobile Phase Additives on LC-MS Sensitivity, Demonstrated using Spice Cannabinoids

This study demonstrates the impact of various mobile phase modifiers on the separation; formate modifiers outperform acetate in terms of MS signals (or sensitivity) and chromatographic resolution.

Fast and Accurate Analysis of Vitamin D Metabolites Using Novel Chromatographic Selectivity and Sample Preparation

Vitamin D deficiency has become a topic of interest in recent publications. Vitamin D regulates the absorption of calcium within the digestive track and is important to promote proper bone growth and prevent osteoprosis in older adults.

Method Optimization for LC-MS Analysis of Vitamin D Metabolite Critical Pairs in Serum

Novel sample prep technique coupled with the unique selectivity of the Ascentis Express F5 column enables a fast and simplified bioanalytical method for associated vitamin D metabolites.

Method Optimization for LC-MS Analysis of Vitamin D Metabolite Critical Pairs in Serum

Using HybridSPE-Phospholipid, Ascentis Express, and Other LC-MS Workflow Components

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