GB/T 44969-2024農(nóng)產(chǎn)品水溶性提取物中金屬離子消除方法離子交換法

ICS

65.020.01

CCS

B

00/09

中華人民共和國國家標準

GB/T44969—2024

農(nóng)產(chǎn)品水溶性提取物中金屬離子

消除方法離子交換法

Metalionsremovalinwatersolubleextractsofagriculturalproducts—

Ionexchangemethod

2024-11-28發(fā)布2025-06-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標準化管理委員會

GB/T44969—2024

目次

前言

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Ⅲ

1

范圍

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2

規(guī)范性引用文件

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3

術(shù)語和定義

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4

原理

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5

試劑和材料

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5.1

溶液配制

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5.2

材料

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儀器和設(shè)備

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操作步驟

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7.1

溶解與過濾

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7.2

離子交換樹脂預(yù)處理

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7.3

離子消除

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7.4

離子交換樹脂再生

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Ⅰ

GB/T44969—2024

前言

本文件按照GB/T1.1—2020《標準化工作導(dǎo)則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中國標準化研究院提出并歸口。

本文件起草單位：中國標準化研究院、中國科學(xué)院過程工程研究所、深圳市分析測試協(xié)會、中國科

學(xué)院蘭州化學(xué)物理研究所、深圳市易瑞生物技術(shù)股份有限公司、浙江天草生物科技股份有限公司、廣東

一方制藥有限公司、浙江大學(xué)、北京林業(yè)大學(xué)、南京理工大學(xué)、南京大學(xué)、二連海關(guān)技術(shù)中心、北京市

科學(xué)技術(shù)研究院分析測試研究所、江蘇省質(zhì)量和標準化研究院、南京中科藥業(yè)有限公司、漢中天然谷生

物科技股份有限公司。

本文件主要起草人：席興軍、蘭韜、詹松坤、王晶、歐陽靜、張貴鋒、裴棟、程勇、孫冬梅、

閻衛(wèi)東、于聰聰、孟玲玲、丁慧、李國衛(wèi)、馮鵬、周亞杰、雷建都、王風(fēng)賀、劉福強、王尉、王炳志、

王平。

Ⅲ

GB/T44969—2024

農(nóng)產(chǎn)品水溶性提取物中金屬離子

消除方法離子交換法

1范圍

本文件描述了農(nóng)產(chǎn)品水溶性植物提取物中金屬離子消除的離子交換法。

本文件適用于含多糖、多酚類等農(nóng)產(chǎn)品水溶性植物提取物中鉛（Pb2+）、鎘（Cd2+）、汞（Hg2+）、砷

（AsO33+）等主要金屬離子及有害元素游離陽離子的消除，不適用于帶有羧基（-COOH）及氯離子（Cl-）

等陰離子的提取物樣品，規(guī)?；幚韰⒖际褂?。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

GB5009.11食品安全國家標準食品中總砷及無機砷的測定

GB5009.12食品安全國家標準食品中鉛的測定

GB5009.15食品安全國家標準食品中鎘的測定

GB5009.17食品安全國家標準食品中總汞及有機汞的測定

GB5009.268食品安全國家標準食品中多元素的測定

GB/T5475離子交換樹脂取樣方法

GB/T6682分析實驗室用水規(guī)格和試驗方法

GB/T13659001×7強酸性苯乙烯系陽離子交換樹脂

GB/T16579D001大孔強酸性苯乙烯系陽離子交換樹脂

3術(shù)語和定義

本文件沒有需要界定的術(shù)語和定義。

4原理

農(nóng)產(chǎn)品水溶性植物提取物樣品溶于水，混勻、過濾后，將濾液經(jīng)強酸性陽離子交換樹脂柱進行交

換，樹脂中的H+與濾液中的鉛（Pb2+）、鎘（Cd2+）、汞（Hg2+）、砷（AsO33+）4種有害元素進行

交換，最后采用水淋洗，完成金屬離子的消除過程。

5試劑和材料

除非另有規(guī)定，僅使用分析純試劑，水為GB/