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:

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
Determination of Unknown Organic-Metal Complexes in the Environment by Liquid Chromatography–Inductively Coupled Plasma-Mass Spectrometry | EVISA's News
Shimadzu: New Inductively Coupled Plasma Mass Spectrometer (ICP-MS) | EVISA's News
Instrument database: Bruker Nano GmbH - S2 PICOFOX
Instrument database: Thermo Scientific - Trace GC Ultra
An easy way to selectively determine organomercury in seafood | EVISA's News
A new quantification strategy for bioimaging by laser ablation - inductively coupled plasma-mass spectrometry based on isotope dilution analysis | EVISA's News
Instrument database: Glass Expansion - Assist CM- Syringe-driven sample introduction system
Instrument database: HTA Hi-Tech Applications - HT300A: GC Autosampler
Determination of Vitamin B12 in human milk | EVISA's News
Instrument database: Thermo Scientific - Orbitrap Eclipse Tribrid Mass Spectrometer
Instrument database: GBC Scientific Equipment Ltd. - LC1650 Automated Chromatography Sample Introduction System (ACSIS)
Instrument database: HTA Sampling for Science - HT300A: GC Autosampler
Online addition of an internal standard for high performance liquid chromatography-inductively coupled plasma mass spectrometry | EVISA's News
Instrument database: OI Analytical - SAM Standards Addition Module
Component database: Glass Expansion - Flared-end Peristaltic Pump Tubing
Accurate determination of arsenic and its species by internal standardization | EVISA's News
Instrument database: HTA Sampling for Science - HT300L: HPLC Autosampler
Instrument database: Gilson, Inc - ASPEC™ XLi SPE System with On-line Injection
Instrument database: Sedico Ltd. - AFP-100 Flame Photometer