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[用变色酸比色法测定蛋白质覆盖物中游离甲醛]

[Determination of unbound formaldehyde in protein coverings using the colorimetric method with chromotropic acid].

作者信息

Lewandowska I, Jurkiewicz M

机构信息

Zakładu Badania Zywności i Przedmiotów Uzytku Państwowego Zakładu Higieny, Warszawie.

出版信息

Rocz Panstw Zakl Hig. 1993;44(2-3):175-9.

PMID:8016540
Abstract

In the period 1989-1991 in a control of health quality of packing material and utility objects in contact with food 1964 samples of protein coverings for processed food were analysed, determining the content of formaldehyde, lead, arsenic and copper according to the requirements of Production Standard ZN-76/MPSS-M-19-149. It was found that in about 40% of covering samples formaldehyde level exceeded the acceptable level of 1000 mg/kg. In about 90% of the samples the level of formaldehyde was below 1800 mg/kg. In 14% of the samples the lead level was increased. Arsenic and copper were within normal range in most analysed coverings.

摘要

在1989 - 1991年期间,对与食品接触的包装材料和实用物品的卫生质量进行了控制,分析了1964份加工食品蛋白质覆盖物样本,按照生产标准ZN - 76/MPSS - M - 19 - 149的要求测定了甲醛、铅、砷和铜的含量。结果发现,约40%的覆盖物样本中甲醛含量超过了1000毫克/千克的可接受水平。约90%的样本中甲醛含量低于1800毫克/千克。14%的样本中铅含量升高。在大多数分析的覆盖物中,砷和铜含量在正常范围内。

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