GB 5009.309-2025 Active National standards force_standard

GB 5009.309-2025 National standard for food safety: Determination of asparagine and glutamine in food

Publish Date: 2025-09-02 Implement Date: 2026-03-02 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 54

Out of stock

Basic Information

Standard Code: GB 5009.309-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: yes

CCS Name: Health, safety, and labor protection

ICS Name: -

Publish Date: 2025-09-02

Implement Date: 2026-03-02

Pages: 16 pages

Scope

This standard specifies the pre-column derivatization-high performance liquid chromatography and liquid chromatography-tandem mass spectrometry methods for the determination of asparagine and glutamine in food.
In the first method, the direct extraction method is suitable for the determination of free asparagine and free glutamine in special dietary foods, and the enzymatic extraction method is suitable for the determination of the total amount of asparagine and glutamine in special dietary foods.
The second method is suitable for the determination of the total amount of asparagine and glutamine in special dietary foods.

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Same series standard

Related Standards

DZ/T 0101.12-1994 Active

DZ/T 0101.12-1994 Geological instrument manufacturing time quota for printed circuit board

Publish Date: 1994-01-27

JJG 204-1980 Active

JJG 204-1980 Meteorological Ventilation Psychrometer

Publish Date: 1980-07-11

SC 53-1980 Active

SC 53-1980 Transfer blade hydraulic steering gear repair quality standard

Publish Date: 1981-07-01

DZ 4-1981 Replaced

\nDZ 4-1981 Method for Compiling Product Models of Geological Instrumentation Equipment

Publish Date: 1981-08-20

SC 69-1982 Active

SC 69-1982 ZSS-12 Flash-type seawater desalination production device technical specifications

Publish Date: 1982-01-20

SC 72-1982 Active

SC 72-1982 Steel Fishing Boat Builder Quality Standards and Mooring Equipment Installation Technical Requirements

Publish Date: 1982-03-30