in spectroscopy: Data value in a datastream in the absence of any analyte or interference.

The term "background" was found in the following pages:

Journals database: Annals of Faculty Engineering Hunedoara – Journal of Engineering
Instrument database: Anton Paar GmbH - Monowave 450: Automated Microwave-assisted Extraction
Instrument database: Varian Inc. (Part A) - AA 280 Z
Instrument database: Teledyne Instruments Leeman Labs Inc. - Prodigy DC arc
Instrument database: Analytik Jena AG - ZEEnit 650 P (graphite AAS with Zeeman technique)
Graduate Course on Speciation and Bioavailability | EVISA's Agenda of Events
Instrument database: Dionex Corporation - MSQ Plus Mass Spectrometric Detector
Tracing Gadolinium-based Contrast Agents from Wastewater, via Surface Water to Drinking Water | EVISA's News
Instrument database: Thermo Scientific - ELEMENT GD
Instrument database: GBC Scientific Equipment Ltd. - 950 Series ICP-OES Spectrometer
Link database: Mercury Policy Project: Mercury Rising - Reducing global emissions from burning mercury-added products
The European Chemical Agency (ECHA) calls for comments on reports proposing restrictions on mercury and phenylmercury | EVISA's News
Instrument database: Varian Inc. - Vista-PRO Simultaneous ICP-OES
Journals database: ICP Information Newsletter
Component database: Meinhard - Glass Products - Meinhard Type K, Quartz
Instrument database: Waters Corporation - 432 Conductivity Detector
Component database: Elemental Scientific Inc. (ESI) - PFA MicroFlow Nebulizers
Instrument database: Analytik Jena GmbH - novAA® 400 P - fully automated AAS spectrometer
Component database: Meinhard - Glass Products - Meinhard Type CK, Quartz
Instrument database: Bio-Rad Laboratories - QuadTec UV/vis Detector