Select sequence sample types

Sample types are used in a sequence to describe each item being processed. You select sample types in the sequence table or as part of a sequence template.

Table: Sample type descriptions

Sample	A sample with unknown amounts of analytes being analyzed.
Blank	A sample without any analytes that is treated like a sample. It is used as a signal-to-noise reference for all subsequent samples and for system suitability. If an ISTD method is being used, then the Blank usually contains the internal standard.
Double blank	Sometimes called "solvent blank", it is used to prove that no chromatographic artifacts are coming from the instrument flow path for that particular column.
Cal. Std. (Calibration standard)	A sample with a known amount of analyte that is used as a reference to create or update a calibration table in the processing method.
QC check	A sample with a known amount of analyte that is used to verify and prove that the calibration is correct.
Spike	A sample with a known amount of standard added.
Sys Suit	A sample that is run to demonstrate that system is working correctly as expected. This sample is typically run before running other samples.