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New EN ISO 22964 for Cronobacter spp. detection in the food chain
The new EN ISO 22964:2017 standard specifies a horizontal method for the detection of Cronobacter spp. in food, animal feed and environmental samples.
Detection of Listeria monocytogenes in Food and Environmental Samples
Detection of Listeria monocytogenes in food and environmental samples according to ISO 11290-1, FDA-BAM and USDA-FSIS
Testing for E. coli and Coliforms in Drinking Water According to ISO 9308-1
Testing for E. coli and Coliforms in Drinking Water According to ISO 9308-1
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.
Revised ISO 17995 Water Quality
This second edition of ISO 17995 has been revised by the Technical Committee ISO/TC 147, Water quality, Subcommittee SC 4, Microbiological methods, and replaces the first edition (ISO 17995:2005).
Testing Drinking Water - An Overview of National & International Regulations
An overview of USEPA, EU regulations, and various testing methods to ensure drinking water safety.
Pseudomonas Media and Tests
An article concerning the detection, identification, differentiation, and cultivation of Pseudomonas species.
Determination of Triclosan in Environmental Waters
Triclosan was detected in waste water plant discharge using HPLC followed by UV and MS/MS detection.
Membrane Filters for Microplastics Analysis
An overview of microplastics, testing regulations, and filter selection for microplastic sample collection, preparation, and analysis.
Listeria Detection Standards in Food Chain
ISO updated Listeria detection standards in 2017, specifying methods for food and environmental samples.
Safe Drinking Water Act & Clean Water Act
The Safe Drinking Water Act regulates finished drinking water, raw water sources, and distribution to ensure water safety.
Ion Chromatography for Trace Cation Analysis
Metrosep C Supp 2 column and acidic binary IC eluent accurately determine ammonium in acidic solutions, meeting pharmacopeia regulations.
EN ISO 11133:2014 Standards
EN ISO 11133:2014 ensures quality-assured culture media for food and water testing, enhancing consumer safety.
24th Annual Lab Design Conference
Lab Design Conference attracts individuals involved in the planning, designing, engineering, construction, and operation of laboratory facilities.
Ultrapure Water for Metal Analysis in Regulated Food & Beverage Labs
View the suitability of ultrapure water from a Milli-Q system for the multi-elemental analysis (ICP-MS) of toxic metals in foods and drinking water.
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.
Obtaining Ultrapure Water for Sensitive PFAS Analysis by LC-MS
Sensitive PFAS testing can be performed with ultrapure water from a Milli-Q® IQ 7 system, which eliminates detectable PFAS for reliable LC-MS/MS results. See the science, see the proof.
ISO 11133:2014 Quality Culture Media for Food and Water Testing
EN ISO 11133:2014 standard mandatory for microbiological testing labs, ensuring quality in media preparation and testing.
Determination of 7 Nitrosamines in Drinking Water
Nitrosamines analysis by solid phase extraction (SPE) and subsequent gas chromatography-tandem mass spectrometry (GC-MS/MS) according to GB 5750.10-2023.
Fast and High-Resolution LC-MS Separation of PFAS
Liquid Chromatography–Mass Spectrometry (LC-MS) separation of 33 PFAS (Per- and poly-fluoroalkyl substances) using a superficially porous silica particles (SPP) based Ascentis® Express C18 column.
LC-MS Analysis of PFAS Compounds in EPA Method 533 using Supelclean™ ENVI-WAX™ SPE
Learn how method EPA 533 is used for sample collection and preparation, featuring Supelclean™ ENVI-WAX™ SPE cartridges for LC-MS analysis on an Ascentis® Express PFAS HPLC Column.
Revised EN ISO 21528:2017 for Detection and Enumeration of Enterobacteriaceae in the Food Chain
The International Organization for Standardization (ISO) published the revised EN ISO 21528-1 and EN ISO 21528-2 standards in 2017.
Calculating Your Working Tolerance: A Guideline
Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)
Analytical Method: Urea in Water and Wastewater, Enzymatic Determination
Urea in water and wastewater, enzymatic determination - Photometric determination using the indophenol blue method after cleavage of the urea
Dual-Column GC Analysis of Organochlorine Pesticides on SLB®-5ms and SLB®-35ms
The primary column is used to determine presence of the target analytes in the sample; the secondary column of a different selectivity confirms whether a positive match.
Salmonella Contamination and Rapid Detection Methods
Salmonella pass through the entire food chain from animal feed, primary production, and into households or food-service establishments.
Determination of Bisphenol A in Drinking Water
A comprehensive sample preparation and analytical procedure was developed by Supelco for determining BPA in drinking water.
Analytical Method for Selenium in Water
Quantify selenium in water using this photometric test and a clear, filtered sample to measure the results at 445 nm.
Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943
High performance, reliability, and reproducibility of HS-SPME in combination with GC/MS for the determination of VOCs in water was proven in an interlaboratory trial. The new ISO 17943 using HS-SPME is an improvement on existing official methods for this determination
Screening for Estrogen Active Nonylphenols in Water by Planar Solid Phase Extraction – Planar Yeast Estrogen Screen
Nonylphenols (NP) are ubiquitous substances that have been detected in highly diverse foodstuff. As breakdown products of nonylphenol ethoxylates, NP could end up in the aquatic environment. This article presents a rapid method for NP detection in surface water
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