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GB/T 37849-2019Method of performance testing for liquid chromatography tandem time of flight mass spectrometry (English PDF)

液相色谱飞行时间质谱联用仪性能测定方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 30, 2019

Implementation date

March 1, 2020

Scope

GB/T 37849-2019 is the English-translated version of 液相色谱飞行时间质谱联用仪性能测定方法.

GB/T 37849-2019 is the Chinese standard "Method of performance testing for liquid chromatography tandem time of flight mass spectrometry". Its scope clause reads: This standard specifies the performance test method for liquid chromatography time-of-flight mass spectrometry.

This standard applies to the performance measurement of various forms of liquid chromatography time-of-flight mass spectrometry. Its clauses include terms and definitions.

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Document preview — GB/T 37849-2019

National Standard of the People's Republic of China

ICS: 71.040.30
Classification: N 53

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and definitions
3.1 Resolution
3.2 Sensitivity
3.3 Mass range
3.4 Linear range
3.5 Mass stability

1 Scope

This standard specifies the performance test method for liquid chromatography time-of-flight mass spectrometry.

This standard applies to the performance measurement of various forms of liquid chromatography time-of-flight mass spectrometry.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 13966 Analytical Instrument Terminology

GB/T 32267 Analytical instrument performance measurement terminology

JJF1528 Time-of-Flight Mass Spectrometer Standard Specification

3 Terms and definitions

The following terms and definitions defined in GB/T 32267, GB/T 13966, JJF 1528 apply to this document.

3.1 Resolution

The ability of the instrument to distinguish between two adjacent mass spectral peaks.

Note. There are two calculation methods.

---Bimodal method. select two adjacent peaks for calculation;

---Single peak method. Calculate using a single peak.

3.2 Sensitivity

The response of the instrument to a sample of concentration at a certain mass peak produced by the selected compound under specified conditions. General use

The signal-to-noise ratio at a given concentration characterizes the sensitivity, and the signal-to-noise ratio is the ratio of the signal strength of the sample to the noise intensity.

3.3 Mass range

The range of mass-to-charge ratios of ions that can be measured under normal conditions.

3.4 Linear range

The concentration range in which the response value is linear with the concentration of the analyte.

3.5 Mass stability

The change in mass spectrometer versus ion mass-to-charge ratio measurements over time.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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