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果蔬類污染物三合一便攜式檢測儀的應(yīng)
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of Contamination in Fruits and Vegetables with a Portable Rapid Detector
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    摘要:

    使用果蔬污染物三合一便攜式檢測儀對亞硝酸鹽,、重金屬鉛及農(nóng)藥樣品進行測定，確定了儀器對于不同污染物的有效檢測范圍,。結(jié)果表明,，亞硝酸鹽的有效檢測范圍為1.5～150μg/mL,重金屬鉛在0.5～4.0μg/mL之間，辛硫磷,、敵百蟲,、呋喃丹和滅多威的檢測范圍分別是0.005～2.0、0.005～0.5,、0.005～0.3和0.005～1.0μg/mL,。與Optizen 2120V-FT食品安全快速檢測儀相比,，儀器對于亞硝酸鹽,、重金屬鉛、農(nóng)藥各項指標(biāo)的檢測均具有較好的準(zhǔn)確性和精密度,，能夠滿足快速檢測的要求,。

    Abstract:

    The performance of a newly-developed portable rapid detector of contamination in fruits and vegetables (PRD) was tested in lab, by detecting the content of nitrite, heavy metal and pesticide in different samples. The detection ranges of nitrite, lead, phoxim, trichlorfon, carbofuran and methomyl were 1.5～150, 0.5～4.0, 0.005～2.0, 0.005～0.5, 0.005～0.3 and 0.005～1.0μg/mL, respectively. Precision tests, made on different concentration levels, gave values of RSD in the ranges of 2.6%～8.9% for lead, and less than 2% for nitrite, and the sensitivity of the four pesticides ranged from 31.368 to 62.05. The results show that the accuracy and precision detecting the three kinds of contamination can meet the requirement of rapid detection compared with Optizen 2120V-FT machine. The PRD is more simple, rapid, portable and feasible for application.

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欒云霞,韓平,陸安祥,潘立剛.果蔬類污染物三合一便攜式檢測儀的應(yīng)[J].農(nóng)業(yè)機械學(xué)報,2009,40(Z1):146-149. of Contamination in Fruits and Vegetables with a Portable Rapid Detector[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(Z1):146-149.

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