Application Notes: Sample Prep

Peak performance under your lab conditions. New Cubis® II Balances minimize environmental effects, improving specifications and speeding up weighing workflows.

This application note provides insight into how solvents can be efficiently dried down using a nitrogen blowdown evaporator and a guide on the best place to start.

This application note demonstrates a novel Empore 8270 Disk to extract 125 semi-volatile organic compounds from water samples per EPA 8270E method.

Empore StageTips was widely used in peptides and proteins desalting in Proteomics. The sample loading amount on total number of protein identifications was evaluated.

Outlines an extraction procedure and an optional fluorenylmethyloxycarbonyl chloride derivatization step to allow for the analysis of glyphosate on a C18 column.

This application note describes the benefits of automated gravimetric liquid dispensing compared to traditional manual stock solution preparation in a volumetric flask.

This guide describes how you can improve the efficiency of your chromatographic workflow with our manual, automated, and robotic solutions

This application note explains an integrated workflow with automatic flow of weighing data from sample and standard preparation to chromatographic analysis in the HPLC.

Read our application note to find out how gravimetric solution preparation can significantly reduce the cost of your trace metal analyses.

This application note presents a quick and easy way to prepare accurate reference standards for HPLC and other chromatographic (analytical) methods.

An introduction to microchamber sampling for the rapid screening of chemical emissions from construction materials and consumer products

Theory and practice of using axial and radial samplers for passive (diffusive) monitoring of VOCs in air

Advice on which sorbent to use for pumped (diffusive) tube monitoring of various vapour-phase organics; suggests parameters for conditioning and storing packed tubes.

This application note describes a method for the determination of PCBs in soils using the Extreva ASE system.

This application note describes a method for the determination of PCBs in soils using the Extreva ASE system.

A method for determining 16 PAHs in soil matrices using the Extreva Ase system, the Trace 1310 Gas Chromatograph, and the ISQ 7000 single quadrupole mass spectrometer.

Method for the determination of 16 PAHs in soil matrices using the EXTREVA ASE system and TRACE 1310 Gas Chromatograph and ISQ 7000 Single Quadrupole Mass Spectrometer

This application note demonstrates the extraction of 25 PFAS analytes from drinking water using Supelclean™ ENVI-WAX™ SPE as described in regulated method EPA 533.

This application note introduces a simple targeted extraction method for the analysis of nine nitazene compounds from urine and blood using the Clean Screen® DAU column.

The nutrition profile of food is critical for assessing its quality. In this poster the amino acids in soy flour were hydrolyzed using a Discover Prep microwave system.

Plant-based proteins are becoming a mainstay to grocery stores, restaurants, and retailers. Amino acids in vegan cream cheese are herein hydrolyzed and analyzed.

In this app note, we perform amino acid hydrolysis of proteins to identify and quantify each amino acid utilizing a safe and rapid amino acid hydrolysis protocol.

Protein analysis plays a large role in the production of foods, pet foods, and even pharmaceutical medicines. But first, the amino acids in the protein must be broken down.

Peptide therapeutics are held to high regulatory standards. Discover Prep was used to hydrolyze the amino acids of a peptide in only 15 minutes, instead of 24 hours.

Classical protocol of amino acid hydrolysis needs up to 24 h of reaction time. Using the Discover Prep, the same level of acid and base hydrolysis was achieved in minutes.

This app note outlines a highly efficient method for the simultaneous analysis of free and sulfated steroids from urine, plasma, and blood utilizing SPE and LC-MS/MS.

This application note describes the automation of the isolation of 10 perfluorinated compounds (PFCs) from tap water prior to their analysis by LC–MS.

This application note outlines an extraction method for four natural cannabinoids and two major metabolites of Δ9-THC in blood using Clean Screen® THC SPE column.