Type II Pure Water Minimizes Interference in UV-VIS Spectrophotometry
9 Oct 2011This application note outlines the importance of the quality of the water used to prepare samples, standards and reagents for ultraviolet and visible spectrophotometric techniques. The recommendation is that pure water of at least Type II quality should be used to ensure the elimination of compounds which may interfere with the absorbance measurement of the compound or element under investigation. It was found that water used for UV-VIS analysis should have a resistivity > 1 MΩ.cm, a TOC of less than 50 ppb and have been previously microfiltered.
Related Products
Request Quote for All Products
PURELAB® Option-S/R
ELGA LabWaterPURELAB Option systems from ELGA are the very best solution for producing pure water (type II) They offer a wide range of flow-rates to suit your needs, advanced purification technologies to provide pure water on demand, plus microprocessor control for consistent quality. Different laboratory applications demand different water purity levels. ELGA offers a choice of general laboratory grade water systems in the PURELAB Option range to cover applications ranging from glassware washing and the feeding of ultra-pure water systems to cell culture and media preparation. The PURELAB Option-S series delivers better than single-distilled quality, whilst the PURELAB Option-R and E series produce better than double-distilled quality.