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Showing 1-25 of 25 results
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.
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.
Membrane Filters for Microplastics Analysis
An overview of microplastics, testing regulations, and filter selection for microplastic sample collection, preparation, and analysis.
PFAS Testing Methods and Guidance for Sample Filtration
Validation of Millex® PES syringe filters in PFAS testing of water samples using EPA method 537.1.
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.
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.
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.
LC-MS Analysis of Hormones in Tap Water
Milli-Q® ultrapure water systems deliver water free of organic contaminants , including hormones present in a lab's tap water, making it suitable for the most sensitive LC-MS/MS analyses.
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.
Comprehensive Quality Assurance and Process Control
Optimize measurement reliability with advanced analytical quality assurance and process control using Spectroquant®, MQuant®, TraceCERT®, and more.
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
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.
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
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.
Differentiation of Escherichia coli from coliforms
There are many other methods of detection to indicate the presence of E. coli. Review common tests and biochemical reactions for this contaminant.
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
EN ISO 11133 Microbiological Culture Media
Water source comparison for microbiological media preparation highlights central purification vs. Milli-Q® IX system efficiency.
LC-MS Analysis of PFAS Compounds
LC-MS method separates 32 PFAS compounds in drinking water following EPA methods 533, 537, and 537.1. EPA 8327.
Ultrapure Water to Assess Toxic Elements in Environmental Analyses
See the data showing how Milli-Q® ultrapure water meets the stringent purity requirements for reliable trace element analyses of 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.
EN ISO 11133:2014 Standards
EN ISO 11133:2014 ensures quality-assured culture media for food and water testing, enhancing consumer safety.
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.
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.
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.