Chemical analysis

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facet applications:Chemical analysis

facet content type:Technical Article

Showing 1-30 of 43 results

Headspace-SPME as a Versatile Monitoring Method for Early Detection of Insect Infestation in Rice

Discover a high-throughput HS-SPME-GC-MS method for detecting early insect biomarkers in rice. Utilizing a Carboxen®-PDMS phase on a nitinol fiber core ensures robustness and reproducibility in extraction and desorption processes.

K268 Olive Oil Commission Regulation (EEC) No 2568/91 Annex IX

Learn about the UV-spectrometric determination of the K268 nm value of olive oil, assessing the UV absorbance at 268 nm, to ensure quality and compliance with regulatory standards.

Heavy Metal Analysis of Cannabis sativa by ICP-MS and the Need for Proper Sample Homogenization

A 4-step comprehensive ICP-MS workflow including sample homogenization, with standard addition calibration method, to determine heavy metals in Cannabis sativa.

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.

Analysis of Fats in Food & Beverages

This article explores the analysis of fats in food and beverage products. From derivatization of fatty acids to FAMEs, to analysis of FAME isomers, and more we are your one-stop shop for all of your food and beverage analysis needs.

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.

Ultrapure Water for Food and Beverage Analysis by Ion Chromatography

View the suitability of Milli-Q® ultrapure water for the IC analysis of sugars and small organic acids in foods and beverages.

Analytical Quality Assurance: Peracetic Acid Standard

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

Detecting Heavy Metals in Food & Beverages

Recent advances in analytical tech for heavy metal detection ensure food safety, with products and services supporting trust in consumption.

pH of Milk and Milk Products

An easy-to-use, economical, and smartphone-based reliable pH determination of milk and milk products using the MQuant® pH test strips and the MQuant® StripScan App.

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.

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.

Determination of vitamins B and preservatives

Learn to separate and quantify B vitamins and preservatives in capsules with HPLC-UV and Purospher® STAR RP-8 column. Validated for precision.

Analysis of Antioxidants in Bakery Products

HPLC-UV method detects 9 antioxidants like propyl gallate in food using a Discovery®</sup HS C18 column for excellent peak shapes.

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.

Polynuclear Aromatic Hydrocarbons Analysis by HPLC for Olive Oil

Highly accurate HPLC-FLD method for evaluating 15 PAHs in olive oil using Ascentis® Express PAH HPLC column and SPE cleanup, following GB 5009.265-2021.

Neonicotinoids Pesticides and Metabolites

Neonicotinoids have established themselves as key components in insecticides because of their unique selectivity. The mode of action is similar to nicotine.

pH in Fruit Juices

An easy-to-use, economical, and smartphone-based reliable determination of pH in fruit juices using the MQuant® pH test strips and the MQuant® StripScan app.

Validation of a Simple Method for the Alcohol Content in Kombucha Tea by Headspace SPME and GC-MS

Development and validation of a headspace SPME and GC-MS method to determine alcohol content in twenty different Kombucha tea samples.

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.

Efficient PAH Analysis (EU 15+1) using an Ascentis® Express PAH HPLC Column

This application note describes the fast and efficient separation of the EU’s list of 15 + 1 polynuclear aromatic hydrocarbons (PAHs) using Ascentis® Express PAH HPLC column.

Multiclass Pesticide Analysis of Soy Milk Using a Matrix-Compatible SPME Fiber

Pesticide analysis, SPME Fiber, supelco spme fiber, direct immersion spme, pesticide analysis methods, pesticide analysis by gc-ms, DI-SPME, overcoated SPME, overcoated fibers, soy milk analysis

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

Learn about the UV-spectrometric determination of the K270 nm value of olive oil, assessing the UV absorbance at 270 nm to ensure quality and compliance with regulatory standards.

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.

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