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: HTA s.r.l. - HT300L: HPLC Autosampler
Speciation Analysis - Striving for Quality | EVISA's News
Component database: Glass Expansion - Flared-end Peristaltic Pump Tubing
Instrument database: Glass Expansion - Niagara Plus FI Sample Injector
Instrument database: Austin AI, LLC - TX2000 Energy Dispersive X-Ray Fluorescence Spectrometer
Instrument database: GBC Scientific Equipment Ltd. - LC1650 Automated Chromatography Sample Introduction System (ACSIS)
Instrument database: Varian Inc. (Part A) - Ultramass 700 ICP-MS
Instrument database: Gilson, Inc - ASPEC™ XLi SPE System with On-line Injection
Instrument database: ISA Jobin Yvon - JY 138 ULTRACE
Component database: New Wave Research, Inc. - GLITTER - Data Reduction Software for the Laser Ablation Microprobe
Instrument database: Jasco Inc. - AS-2059 Intelligent Autosampler
Instrument database: OI Analytical - SAM Standards Addition Module
Instrument database: HTA Sampling for Science - HT300L: HPLC Autosampler
Instrument database: Varian Inc. - AA280FS
Instrument database: Agilent Technologies Inc. - 280FS AA - Atomic Absorption spectrometer
Instrument database: HTA Hi-Tech Applications - HT300L: HPLC Autosampler
ERM-AE671: A new Certified Reference Material to make methylmercury measurements in food more reliable | EVISA's News
Instrument database: Varian Inc. (Part A) - AA280FS
Instrument database: Bruker AXS GmbH - S2 PICOFOX
Instrument database: HTA s.r.l. - HT300A: GC Autosampler