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Extend Electrode Life
Extend the Life of Your Electrode" in this Labware Literature guide
Mycotoxin Analysis in Food and Feed: Detecting the Fungus Among Us
Ensure your mycotoxin tests are accurate and reliable, every time. Discover our Supelco® analytical portfolio at each step of your mycotoxin analysis; preparing your sample efficiently, accurately separating and producing reliable detection. Find out more here
Selectophore Ionophores
Sigma-Aldrich.com presents an article on Selectophore Ionophores
SGE FAQs
SGE Syringe Frequently Asked Questions (FAQs).
An Easier, Faster, and Cost-Effective Option for Measuring Total Nitrogen
This total nitrogen test kit is faster, safer, more accurate and costs less than the traditional method. The Total Nitrogen Analysis test kit was developed to provide users with a single test method for determining total nitrogen levels in process...
Safe Drinking Water Act & Clean Water Act – What is it?
The Safe Drinking Water Act reflects the primary drinking water regulation. Drinking water here means finished drinking water from the plant and the distribution lines. But the Safe Drinking Water Act covers also the ground water sources for raw water...
Sensitive Determination of Iron in Drinking Water, Mineral Water, Groundwater, and Spring Water Using Rapid Photometric Tests
Spectroquant® Iron Test - a suitable alternative to ICP or AAS for determination of iron in drinking water, mineral water, groundwater, and spring water.
Enzymatic Method for Determining Branched Chain Amino Acids (BCAA Assay)
Assay protocol for the colorimetric detection of Branched Chain Amino Acids (BCAA) in biological samples using the alanine assay kit.
What is FTIR Spectroscopy?
Learn about FTIR Spectroscopy (Fourier transform infared spectroscopy). Learn what is FTIR, what it does and how it works. Useful information on this widely used technique, example of FTIR graph chart and more.
Transmittance to Absorbance Table
Transmittance to absorbance table for fast conversion. Use this chart as a handy reference in the lab, classroom or field. The online transmittance chart is available to download and share.
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
Phosphate in Groundwater and Surface Water: A Rapid and Reliable Determination Method using the Photometric Spectroquant® Test
The analysis of low concentrations of PO4-P in natural, uncontaminated waters is often challenging. The Spectroquant® photometric test provides an easy-to-use and sensitive method for quantification with results comparable to DIN EN ISO 6878.
Milli-Q® IQ 7000 Ultrapure Water System
It's intelligent. It's intuitive. It's designed to make your work as pleasant and comfortable as possible — and to maximize lab productivity. Its breakthrough ergonomic design and powerful purification media ensure consistent production of superior-quality ultrapure water. See how the...
Importance of Volumetric Solution Standardization
The titer determination or standardization of a titration solution is essential for accurate and reliable titration results. High quality solutions verified by high quality standards are the base for a reliable determinations.
Milli-Q® IX Pure Water System
Type 2 pure water from tap. Milli-Q® IX systems are compact, offers 4 flow rates, 3 tank sizes, and quality monitoring directly on the dispenser’s touchscreen interface.
Electrode Selection Guide
Electrode Selection Guide in our Labware Literature guide - Low resistance glass pH electrodes, or reference electrode with a fast, continuous leak rate. Both raise the conductivity, but at the same time may change the sample pH at the electrode...
IR Spectrum Table
The IR Spectrum Table is a chart for use during infrared spectroscopy. The table lists IR spectroscopy frequency ranges, appearance of the vibration and absorptions for functional groups.
Calculating Your Working Tolerance: A Guideline
Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)
What is Titration?
Titration is a quantitative chemical analysis method to determine the unknown concentration of any substance, such as a raw material, substance or finished good.
Electrochemistry on the Bench and in the Field
Nanomaterials, electrochemistry, BASi, LIB, Lithium Ion Batteries, reference electrode, Teflon, silver nitrate, working electrodes, counter electrode, organic electrosynthesis
Identification of Cell Culture Media with Raman Spectroscopy
Identification of cell culture media samples by traditional LC methods, such as amino acid or vitamin analysis, has high costs, and requires significant analytical expertise and laboratory space.
Determination of Phospholipid Oxidation by UV/VIS Spectroscopy - Avanti® Polar Lipids
The percent oxidation of a phospholipid can be determined by using Beer’s Law to calculate the peroxidized phospholipid’s concentration from its absorbance at 234 nm.
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.
How to Select the Right Water Purification System for Your Lab
Technical article on Selecting the Right Water Purification System