Chemical analysis

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facet applications:Chemical analysis

facet content type:Technical Article

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Ultrapure Water for Pesticides Analysis in Cannabis Testing

Explore how Milli-Q® systems deliver pesticide-free ultrapure water, ensuring accurate cannabis testing and supporting regulatory compliance.

Extractables Study with LC-UV/MS

Ascentis® C18 column facilitates LC-UV/MS analysis of extractables from single-use systems, ensuring reliable identification and quantification.

Analytical Quality Assurance: Peracetic Acid Standard

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

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.

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.

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.

Total Polyphenol Content in Apples and Bananas

A complete workflow for estimating the total polyphenol content of apple and banana samples, with gallic acid standard addition curve protocol.

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.

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.

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.

Fast Separation of 18 PAHs with Ascentis^® Express

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

Identification of fixed oils by Thin layer chromatography

This application note describes the HPTLC-based identification of fixed oils using octadecyl silyl silica gel as the coating substance, following USP 43 NF 38 monograph method containing USP general chapter .

EMSURE^® Grade Inorganic Solvents & Reagents

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

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.

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.

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.

Nitrate Levels in Vegetables

Reflectometric nitrate determination in vegetables using Griess reagent and Reflectoquant® 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.

ICP-MS Analysis of Heavy Metals in Hemp-Containing Beverages

A step-by-step protocol for sample preparation, calibration, digestion, and inductively coupled plasma-mass spectrometric (ICP-MS) analysis of heavy metals in six different hemp-containing beverages.

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.

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.

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.

Analysis of PFAS in Water according to EPA 1633

LC-MS/MS determination of per- and polyfluoroalkyl substances (PFAS) in water samples using Supelclean™ ENVI-WAX™ SPE cartridges as per EPA Method 1633.

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.

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.

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.

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.

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.

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