ICP, AAS & ion standards

A single-element standard gives you full control: you build a calibration curve per element and can match each concentration to your samples, for example with the lead ICP-MS standard, 10 mg/l, 100 ml. A multi-element standard saves time in screening and routine QC, because one solution calibrates many elements at once, as with the ICP-MS multi-element standard with 14 elements, 10 mg/l. For ion chromatography there are mixed anion standards too, such as the IC anion standard with 7 anions. Check that the elements in a mix do not interfere in your method. Questions: sales@luminixhealth.com.

ICP-MS measures at very low levels, so its standards usually have lower concentrations, such as 10 mg/l, and a purer matrix with fewer trace contaminants. The lead ICP-MS standard, 10 mg/l is an example. AAS and ICP-OES work at higher levels, and their standards are typically 1000 mg/l, which you dilute to working concentrations, for example the magnesium AAS standard, 1000 mg/l or the tellurium ICP standard, 1000 mg/l. Always check the acid matrix on the label and match it in your blanks and dilutions.

An ICP, AAS or ion standard is a solution of a stated element or ion at a stated concentration, with an uncertainty. It is the calibration point of a spectrometer or an electrode. The matrix, often dilute acid, has to match the method. A standard past its expiry is not that concentration.

A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.

This shelf belongs to Analytical standards & reference materials, inside Lab chemicals. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions. The category above this shelf is Analytical standards & reference materials.

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