CN1363836A - 纯天然制品的判定方法 - Google Patents

纯天然制品的判定方法 Download PDF

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Publication number
CN1363836A
CN1363836A CN01126504A CN01126504A CN1363836A CN 1363836 A CN1363836 A CN 1363836A CN 01126504 A CN01126504 A CN 01126504A CN 01126504 A CN01126504 A CN 01126504A CN 1363836 A CN1363836 A CN 1363836A
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value
medicine
natural product
natural
pure natural
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李晓蔚
俞祖勋
杨政
梁晶
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李晓蔚
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Priority to US10/216,921 priority patent/US20030035869A1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food

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  • Food Science & Technology (AREA)
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Abstract

一种纯天然制品的判定方法,用于解决“正宗”的纯天然制品的真假难辨问题,其特征是应用C14测定法,先测定出已知的纯天然制品中单位重量碳所含的C14量为A,再测定出待判定制品中单位重量碳所含的C14是B,将两者进行比较,当A值与B组相等或相近时,则判定后者是纯天然的制品;若A值远大于B值,判定后者不是纯天然制品,并可计算出B中所含合成物质和天然物质各自所占的比率。本方法适用于中药、西药、食品、食品添加剂、保健品、调味品等是否是纯天然制品的判定。

Description

纯天然制品的判定方法
技术领域
本发明涉及一种纯天然中药、西药、食品、食品添加剂、保健品、调味品等纯天然制品的判定方法。
背景技术
许多涉及纯天然制品的供销商都宣称自己销售的制品是纯天然制品，其原料是直接从当今的植物或动物体中提取的，以此“证明”该制品是纯天然的，总是令人真假难辨。目前通用的判定方法是用气相色谱仪或高压液相色谱仪测定出被测制品的图谱，再与标准的纯天然制品的标准图谱进行比较来确定，由此得出的结果仅仅是一个不十分可靠的参照物，不能完全判定被测制品是直接从植物或动物体中提取的。
发明内容
以当今的植物或动物体为原料，从中提取的制品称为纯天然制品，应用合成法制成的制品则不是纯天然制品，称为合成制品。纯天然制品中的碳源是现代碳，合成制品中的碳来源于煤、石油、天然气等，它们埋藏地下年代久远，其碳源是“死碳”。众所周知，在碳的几个同位素中只有C14是放射性物质，C14衰变放出β射线，衰变成为C13，其半衰期为5568年。在考古及文物鉴定中应用液体闪烁计器测定样品C14放射性的状况，可以确定被测样品存在的年代，该方法也适用于对地质年代的判断。测量时将样品经过处理后制成可测量物质，其工作原理是利用液体闪烁计数器测量样品每分钟所放出的β射线数，经过重量校正，可以知道单位时间单位重量样品的计数率，用cpm/g表示，即每克每分钟计数；经过测量效率校正后，可以得出每克碳每分钟C14的衰变数，用dpm/gc表示，以此来表示样品中所含C14的比率。
本发明的特征是：应用C14测定法，先测定出已知的纯天然制品中单位重量碳所含的C14量为A，再测定出待判定制品中单位重量碳所含的C14量为B，将两者进行比较，当A值与B值相等或者相近时，则判定后者是纯天然制品；若A值远大于B值，则判定后者不是纯天然制品，并可计算出B中所含合成物质和天然物质各自所占的比率。
本发明的优点是判定的结果准确可靠，因为纯天然制品的A值比人工合成的制品B值大两个数量级。同时适用于对中药、西药、食品、食品添加剂、保健品、调味品等是否是纯天然制品的判定。
具体实施方式
实施例1：应用C14测定法，判定一个保健品大豆异黄酮的样品是否是纯天然制品，先测定已知的纯天然大豆异黄酮，确定其每克碳每分钟C14衰变数为13.094dpm/gc；再测定已知为纯合成法制作的大豆异黄酮，确定其每克碳每分钟C14衰变数为0.11dpm/gc，13.094远大于0.11，判定结果：该测试样品中的大豆异黄酮不是纯天然的，其碳源是早于37000年前的“死碳”，测试结果与实际完全相符。
实施例2：应用C14测定法，再对另一个大豆异黄酮样品进行测试，已知其中含有40％的合成法生产的大豆异黄酮和60％纯天然大豆异黄酮，从实施例1得知纯天然的大豆异黄酮，其每克碳每分钟C14衰变数为13.094dpm/gc；测量本大豆异黄酮样品，确定其每克碳每分钟衰变数为7.921dpm/gc，结果确认：该测试样品中的大豆异黄酮不是纯天然的。显然，其中纯天然成份为7.921÷13.094×100％＝60％，合成的成份为40％。

Claims (2)

1、一种纯天然制品的判定方法，其特征在于：应用C14测定法，先定出已知的纯天然制品中单位重量碳所含的C14量为A，再测定出待判定制品中单位重量碳所含的C14为B，将两者进行比较，当A值与B值相等或相近时，则判定后者是纯天然的制品；若A值远大于B值，则判定后者不是纯天然制品。
2、根据权利要求1所述的判定方法，其物征在于：判定后者不是纯天然制品后，还可以进一步确定该制品中所含合成物质的成份为100％-B÷A×100％。
CN01126504A 2001-08-18 2001-08-18 纯天然制品的判定方法 Pending CN1363836A (zh)

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CN01126504A CN1363836A (zh) 2001-08-18 2001-08-18 纯天然制品的判定方法
US10/216,921 US20030035869A1 (en) 2001-08-18 2002-08-13 Identification method for purely natural products

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1942759B (zh) * 2004-03-12 2011-01-12 苏珊·M·塞尔肖普 钻石检测
CN112578027A (zh) * 2020-11-25 2021-03-30 河南染匠科技有限公司 一种鉴别天然染料和合成染料的方法及其应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351625C (zh) * 2004-09-30 2007-11-28 安徽中医学院 中药材快速点滴荧光鉴别方法
ES2528791T5 (es) 2010-12-20 2021-12-03 Covestro Netherlands Bv Polímero vinílico bio-renovable secuencial
EP2655509B1 (en) 2010-12-20 2014-11-19 DSM IP Assets B.V. Aqueous bio-renewable vinyl polymer composition

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US4427884A (en) * 1982-01-25 1984-01-24 The Research Foundation Of State University Of New York Method for detecting and quantifying carbon isotopes
US5848975A (en) * 1996-07-01 1998-12-15 St. Vincent's Medical Center Of Richmond Breath test for helicobacter pylori

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1942759B (zh) * 2004-03-12 2011-01-12 苏珊·M·塞尔肖普 钻石检测
CN112578027A (zh) * 2020-11-25 2021-03-30 河南染匠科技有限公司 一种鉴别天然染料和合成染料的方法及其应用

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