Sample Preparation

SPE preparation workflow for LC-MS analysis of human serum samples

Improving Matrix Cleanup in Serum LC-MS Analysis Using SPE

Leave a Comment / Biological Sample Prep / By /

Matrix Complexity in Human Serum Human serum presents one of the most challenging matrices for LC-MS analysis due to its complex composition. As noted in the literature, serum contains proteins, lipids, salts, and various endogenous compounds that can interfere with analytical measurements. The presence of proteins is particularly problematic, as they can bind to target […]

Improving Matrix Cleanup in Serum LC-MS Analysis Using SPE Read More »

Solid phase extraction setup used for removing lipids from fatty food extracts

SPE Cleanup for Fatty Food Matrices Before LC-MS Analysis

Leave a Comment / Sample Cleanup / By /

Introduction: The Challenge of Fatty Food Matrices in LC-MS Analysis Liquid chromatography-mass spectrometry (LC-MS) has become the gold standard for food safety testing, contaminant monitoring, and nutritional analysis. However, when analyzing fatty food matrices like edible oils, meat extracts, dairy products, and processed foods, laboratories face significant challenges that can compromise analytical accuracy and instrument

SPE Cleanup for Fatty Food Matrices Before LC-MS Analysis Read More »

SPE sample preparation setup for LC-MS drug screening in toxicology laboratory

Using SPE to Improve Sensitivity in LC-MS Drug Screening

Leave a Comment / LC-MS Sample Preparation / By /

Sensitivity Limitations in Direct Injection LC-MS Screening Direct injection liquid chromatography-mass spectrometry (LC-MS) screening for drugs in biological matrices like urine faces significant sensitivity challenges that can compromise analytical accuracy. The primary limitation stems from matrix effects – the suppression or enhancement of analyte ionization by co-eluting compounds. In urine toxicology screening, endogenous compounds such

Using SPE to Improve Sensitivity in LC-MS Drug Screening Read More »

SPE cartridge used for metabolite profiling sample preparation

SPE Sample Preparation for LC-MS Metabolite Profiling

Leave a Comment / LC-MS Sample Preparation / By /

Role of SPE in Metabolomics Workflows Solid Phase Extraction (SPE) serves as a critical sample preparation technique in LC-MS metabolite profiling, functioning as a bridge between complex biological samples and sensitive analytical instrumentation. In metabolomics workflows, SPE performs three essential functions: clean-up to remove matrix interferences, concentration to enhance detection sensitivity, and selective isolation of

SPE Sample Preparation for LC-MS Metabolite Profiling Read More »

SPE cartridge cleaning soil extract samples

Sample Cleanup for Soil Extracts Using SPE Techniques

Leave a Comment / Environmental Sample Prep / By /

Challenges in Soil Sample Analysis Soil analysis presents unique challenges that distinguish it from other environmental matrices. Unlike aqueous samples, soil contains complex mixtures of inorganic minerals, organic matter, and biological components that can interfere with analytical determinations. The primary challenge lies in the heterogeneous nature of soil samples, which often contain particulates, dissolved organic

Sample Cleanup for Soil Extracts Using SPE Techniques Read More »

SPE cartridge cleaning herbal extract samples

SPE Cleanup Strategies for Complex Herbal Extracts

Leave a Comment / Environmental Sample Prep / By /

Complexity of Herbal Extract Matrices Herbal extracts represent one of the most challenging sample matrices for analytical chemists, containing hundreds to thousands of chemical constituents with diverse physicochemical properties. These complex mixtures typically include alkaloids, flavonoids, terpenoids, glycosides, tannins, polysaccharides, proteins, and pigments, all coexisting in varying concentrations. The matrix complexity arises from the natural

SPE Cleanup Strategies for Complex Herbal Extracts Read More »

SPE sample preparation integrated with LC-MS analytical workflow

LC-MS Method Integration with SPE Sample Preparation

Leave a Comment / LC-MS Sample Preparation / By /

In modern analytical laboratories, the integration of solid-phase extraction (SPE) with liquid chromatography-mass spectrometry (LC-MS) represents a critical advancement for achieving high-quality analytical results. This comprehensive guide explores the strategic integration of SPE sample preparation with LC-MS methodologies, addressing key considerations for analytical chemists, method developers, and laboratory managers. 1. The Foundational Role of SPE

LC-MS Method Integration with SPE Sample Preparation Read More »

SPE cartridge removing chlorophyll from plant extract samples

Removing Chlorophyll from Plant Samples with SPE Cleanup

Leave a Comment / Environmental Sample Prep / By /

Chlorophyll Interference in LC-MS and HPLC Analysis Chlorophyll, the primary photosynthetic pigment in plants, presents significant analytical challenges in LC-MS and HPLC analysis of plant samples. These green pigments exhibit strong UV-Vis absorption, particularly in the 400-700 nm range, which can cause severe interference with both UV detection and mass spectrometry analysis. In HPLC systems,

Removing Chlorophyll from Plant Samples with SPE Cleanup Read More »

SPE cartridge removing lipids from food extract samples

Using SPE to Remove Interfering Lipids from Food Extracts

Leave a Comment / Sample Cleanup / By /

Lipid Interference in LC-MS Food Analysis In liquid chromatography-mass spectrometry (LC-MS) analysis of food extracts, lipid interference represents one of the most significant analytical challenges. Lipids can cause ion suppression or enhancement in the mass spectrometer, leading to inaccurate quantification and reduced method sensitivity. According to Simpson and Wynne (2000), co-extracted lipids from food matrices

Using SPE to Remove Interfering Lipids from Food Extracts Read More »

SPE cartridge desalting biological samples prior to LC-MS testing

SPE Cleanup Strategies for Removing Salts from Biological Samples

Leave a Comment / Biological Sample Prep / By /

Salt Interference in LC-MS Analysis In liquid chromatography-mass spectrometry (LC-MS) analysis, salts present in biological samples can cause significant analytical challenges. These inorganic ions interfere with the ionization process in the mass spectrometer, leading to ion suppression or enhancement effects that compromise quantitative accuracy. According to research, atmospheric pressure ionization-MS systems are particularly susceptible to

SPE Cleanup Strategies for Removing Salts from Biological Samples Read More »

Shopping Cart
Poseidon Scientific
Powered by  GDPR Cookie Compliance
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.