Chemical analysis

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facet applications:Chemical analysis

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Showing 1-30 of 60 results

Determination of 2-Chloroethanol as Marker for Fumigant Ethylene Oxide in Sesame Seeds by HS-SPME-GC-MS

The work describes the development of an HS-SPME-GC-MS method to determine 2-chloroethanol as a marker of fumigant ethylene oxide in different kinds of sesame seed samples.

Efficient Analysis of Kava Extract: New phytochemical certified reference material mixes for ginger and kava

Learn more about our Kava CRM solution for use in quantitative and qualitative analysis of kavalactones and flavokavains in kava products to confirm their potency and authenticity.

Measuring Chemical Oxygen Demand in Water Treatment Facilities

We are a global leader in the life science industry and have produced test kits to measure numerous analytes. Water Online spoke with us about advances in measuring chemical oxygen demand.

Analysis of Caffeine and Catechins in Green Tea

Validated HPLC method (based on Ph. Eur. Monograph 2668) for quantifying catechins and caffeine in decaffeinated green tea using a Chromolith® High Resolution RP-18e column with advantages in terms of backpressure and matrix robustness.

Determination of Sialic Acid in Milk

Discover the detection of milk adulteration by whey using spectrophotometric estimation of sialic acid in three different milk brands. Learn more about this essential technique in our application note.

Analysis of Lactose in Milk by HPLC-RI using Chromolith^® NH2 Column

A new HPLC-RI method is proposed for the analysis of Lactose in milk using a Chromolith® NH2 column.

pH in Soft Drinks

An easy-to-use and economical approach for reliable determination of pH of soft drinks with MQuant® pH test strips and MQuant® StripScan App.

Determination of Ascorbic Acid and Dehydroascorbic Acid in Different Food Products and Supplements - A Simple HPTLC Based Approach

Simultaneous analysis of ascorbic acid and dehydroascorbic acid in various food samples by High Performance Thin Layer Chromatography (HPTLC).

Ion Chromatography for Sugar Testing in Food and Environmental Analysis

In this article we demonstrate how well ion chromatography is suited as an analytical technique for sugar analysis e.g. in apple juice, milk, and dust samples.

Simplified LC-MS/MS for Herbicides in Cereals

Glyphosate analysis: LC-MS/MS method with Supel™ Carbon LC U/HPLC column for stability and retention.

Newly Developed Porous Graphitic Carbon in U/HPLC

Polar graphitic carbon enables UHPLC separation of highly polar pesticides, herbicides, and Vitamin D metabolites, advancing liquid chromatography capabilities.

Fast Separation of 18 PAHs with Ascentis^® Express

Ascentis® Express PAH column efficiently separates polynuclear aromatic hydrocarbons in EPA methods.

Determination of Urea in Milk by HPTLC

An HPTLC method for rapid urea detection in milk using a TLC plate scanner and Silica Gel 60 F254 HPTLC plate.

Hydroxymethylfurfural Analysis of Beer by HPLC UV

HPLC-UV determination of 5-HMF (5-(hydroxymethyl)furfural) in beer samples using monolithic silica Chromolith® HighResolution RP-18e HPLC column.

Analysis of Volatiles in Perilla Using SPME Fibers

A throughput HS-SPME-GC-MS method to analyze volatile compounds in Perilla leaves at low extraction temperatures using four different SPME fibers.

Analysis of Persistent Organic Pollutants in Fish and Milk

Assessment of clean-up sorbents for extracting PAHs from salmon and PCBs from milk, optimized for GC analysis with MS and ECD detection.

Analysis of Pesticides and their Metabolite Residues

Pesticide residue analysis of 331 pesticides and 44 metabolites in cabbage samples using Supel™ QuE QuEChERS mixes and Purospher® STAR RP-18e column.

Fatty Acid Methyl Ester analysis by Gas Chromatography

Development and validation of a fatty acid methyl esterification method, using methanolic HCl reagent, for FAME analysis by GC of vegetable oils and fats.

Analytical Quality Assurance: Peracetic Acid Standard

Application Note details preparation of peracetic acid standard solution for analytical quality assurance (AQA) in testing laboratories.

ICP-MS Heavy Metals Analysis in Hemp Food

ICP-MS analyzes 12 heavy metals in hemp-containing food samples using standard addition calibration for accurate quantification.

EMSURE^® Grade Inorganic Solvents & Reagents

EMSURE® Grade Inorganic Solvents and Reagents offer exceptional purity and quality control, ensuring reliable, compliant results for regulated analyses.

Determination of HMF in Honey using RP 18e column

Quantitative analysis of Hydroxymethylfurfural in honey using a Chromolith® HighResolution RP-18e column without the common Carrez clarification step.

Drinking Water Testing by Ion Chromatography using Ultrapure Water

This study reviews the suitability of ultrapure water for the IC analysis of drinking water. Inorganic ions and disinfectant by-products (DBPs) were assessed.

Ultrapure Water for Perchlorate Analysis of Environmental Samples

Assure perchlorate-free water from tap water for sensitive IC analyses. See the removal efficiencies achieved by water purification technologies in Milli-Q® systems.

Water for Kjeldahl Analysis

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

pH of Milk and Milk Products

Learn how to accurately measure the pH of milk and dairy products using MQuant® pH test strips and the StripScan app for quality control.

K270 Olive Oil Commission Regulation (EEC) No 2568/91 Annex IX

Discover the K270 method for analyzing olive oil quality as per EEC Regulation 2568/91. Access detailed protocols and ensure compliance with standards.

Antibiotic Analysis Tetracyclines Sulfonamides Quinolones

LC-MS/MS-based determination of 19 sulfonamides, 13 quinolones, and 3 tetracycline drug residues in pork meat samples using Supel™ Swift HLB for extraction.

LC-MS/MS Analysis of 16 PFAS in Salmon Using QuEChERS Based on FDA Method C-010.02

Find more about the analysis of 16 PFAS in salmon via QuEChERS extraction and LC-MS/MS characterization following FDA Method C-010.02.

Quantification of Psilocybin and Psilocin in magic mushrooms

LC-MS procedure, including sample extraction, for the determination of tryptamine hallucinogens, psilocin, and psilocybin in psilocybin mushrooms.

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