Cobalt chloride color verification#
The use of the accurate starting materials (potassium chloroplatinate/cobalt chloride hexahydrate) required by the ASTM method, combined with Inorganic Ventures’ NIST traceable instrument verification methods, ensures credible, repeatable and reliable results. Therefore, it is essential that the quality of the reference materials used match the high-quality performance of UV/Vis spectroscopy. Using UV/Vis spectroscopy, rather than a visual comparison, allows an analyst to more accurately and precisely determine present impurities, which is necessary for virtually colorless samples. This need has been met using a colorimetric scaling method that measures the yellow tint in liquids compared to a qualified reference solution. Different expressions for defining “water white” were developed, making it clear that a more precise color standard is needed. For many years, the term “water white” was considered an adequate measurement of solvent color. The color of water and wastewater is often evaluated by determining the level of contaminants present and acts as a general indicator of water quality. If you don’t start with an accurately calibrated CRM, you can’t have confidence in your data. PAH’s – Polycyclic Aromatic Hydrocarbonsĭrowning in water testing regulations? Inorganic Ventures’ Platinum Cobalt Color Standard (PT-CO-500ML) is your lifeline!Īccurate, traceable standards are essential for regulatory compliance.Glyphosate, Glufosinate and AMPA Analysis.
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