GB/T 8312-2002 in English

SUPERSEDED

Tea - Determination of caffeine content

Issued on:2002-06-17
Implemented on:2002-12-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $260.00
$253.00

Standard No:	GB/T 8312-2002
Document status:	SUPERSEDED
Superseded by:	GB/T 8312-2013 Tea - Determination of Caffeine Content
Superseded on:	2014-06-22
Title in English:	Tea - Determination of caffeine content
Title in Chinese:	茶咖啡碱测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2002-06-17
Implemented on:	2002-12-01
Professional Classification:	GB-National Standard
Related Keywords:	caffeine content scopethis standard caffeine tea determination result calculation methods
Related Topics:	alkali coffee stick Moisture Determination Coffee coffee ingredients coffee tea Determination of caffeine in coffee Determination of coffee caffeine caffeine liquid phase method caffeine liquid phase method coffee shop tea coffee tea coffee caffeine liquid phase coffee and tea Liquid phase determination of caffeine in tea caffeine liquid phase Determination of caffeine in tea Hong Kong style coffee shop coffee front Hong Kong style coffee shop Americano gb8312 animal coffee Coffee Sour Tablets coffee ingredients Caffeic acid 99 coffee golden ear Polytheophylline gb/t+8312 coffee dementia peptide coffee GBT8312 GB/T 8312-2002 GB/T 8312-2013 Coffee machine industry Detection of caffeine in tea black coffee group Caffeamide determination method Determination method of aminophylline gbt8312-2015

《GB/T 8312-2002茶咖啡碱测定》由442（中华全国供销合作总社）归口，主管部门为中华全国供销合作总社。
本标准规定了用高效液相色谱法、紫外分光光度法对茶叶中咖啡碱测定的原理、仪器与用具、试剂和溶液、操作方法及结果计算方法。本标准适用于茶叶中咖啡碱的测定。

Scope

This standard specifies the principle, instruments and utensils, reagents and solutions, operation methods and result calculation methods for the determination of caffeine in tea by high performance liquid chromatography and ultraviolet spectrophotometry. + This standard applies to the determination of caffeine in tea.

More samples: DL/T 368-2010 GB 50021-2001(2009) GB 18306-2015

Sample only — not a preview of GB/T 8312-2002

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