internal standard

A material that is present or added to a sample, undergoing instrumental analysis, to serve as an intensity reference for to permit correction for inefficiencies. In order that the internal standard can be used for the correction of non-spectroscopic interferences, it should behave similar to the target analyte. Depending on the technique used (e.g. ICP-AES, ICP-MS) similarity can be expressed in terms of excitation energy, ionization energy or the sum of both.



The term "internal standard" was found in the following pages:

Instrument database: Glass Expansion - Niagara Plus FI Sample Injector
Online addition of an internal standard for high performance liquid chromatography-inductively coupled plasma mass spectrometry | EVISA's News
Instrument database: Varian Inc. - Ultramass 700 ICP-MS
Highly selective Cr(VI) determination at ultra-trace levels using on-line trapping of Cr(III) with ICP-MS detection | EVISA's News
Identification of lead contamination sources in soil reference materials using the continuous on-line leaching method and inductively coupled plasma mass spectrometry | EVISA's News
Instrument database: Varian Inc. - AA280FS
Instrument database: Bruker Nano GmbH - S2 PICOFOX
Instrument database: Gilson, Inc - ASPEC™ XL4 Four-Probe SPE System
Instrument database: Sedico Ltd. - AFP-100 Flame Photometer
Instrument database: Varian Inc. (Part A) - Ultramass
Instrument database: Jasco Inc. - AS-2059 Intelligent Autosampler
Determination of Vitamin B12 in human milk | EVISA's News
Link database: NEMI: Method Number: 557: Haloacetic Acids, Bromate, and Dalapon in Drinking Water by IC-ESI-MS/MS
Instrument database: Thermo Scientific - iCAP™ PRO Duo ICP-OES
Tin and mercury content and speciation in red wine from different countries | EVISA's News
Instrument database: Glass Expansion - Niagara Plus CM - Sample Introduction System
Instrument database: Allied Analytical Systems - Plasma 300 - ICP-OES Spectrometer
ERM-AE671: A new Certified Reference Material to make methylmercury measurements in food more reliable | EVISA's News
Component database: New Wave Research, Inc. - GLITTER - Data Reduction Software for the Laser Ablation Microprobe
Selenium species are partly converted during their enzymatic extraction from biological samples with protease XIV | EVISA's News