食品中六六六、滴滴涕殘留量的測定GB/T 5009.19-2003，室內(nèi)空氣，焦?fàn)t煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，消毒劑，氨水，氨氣，過氧化物，乙縮醛

食品中六六六、滴滴涕殘留量的測定GB/T 5009.19-2003
食品中六六六、滴滴涕殘留量的測定GB/T 5009.19-2003 詳細(xì)信息：

名稱：安捷倫7890B玻璃柱

規(guī)格：2m*1/4，80-100目

型號：1.5%OV-17+2%QF-1/Chromosorb AW DMCS（80-100目）

編號：20220818001

溫度：240°C

應(yīng)用：GB/T 5009.19-2003 食品中六六六、滴滴涕殘留量的測定

GB/T 5009.19-2003 食品中六六六、滴滴涕殘留量的測定
代替GB/T 5009.19-1996，被GB/T 5009.19-2008 食品中有機氯農(nóng)藥多組分殘留量的測定代替
本標(biāo)準(zhǔn)規(guī)定了食品中六六六(HCH)、滴滴涕(DDT)殘留量的測定方法。
本標(biāo)準(zhǔn)適用于各類食品中六六六、滴滴涕殘留量的測定。

食品中六六六、滴滴涕殘留量的測定,國內(nèi)大多采用磺化法凈化.但此法碰到主要問題是乳化現(xiàn)象嚴(yán)重,有時甚變成糊狀,很難靜置分層,若延長凈化時間又影響結(jié)果的準(zhǔn)確,特別是使β-666,δ-666結(jié)果偏低。

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司開發(fā)了一種采用振蕩離心提取、氣相色譜法檢測技術(shù)、可用于植物性食品(如水果、蔬菜、糧食、茶葉、干貨等)和動物性食品(如肉類、水產(chǎn)品類、禽類等)中六六六、滴滴涕殘留量快速檢測的方法。應(yīng)用該方法分別對水果、蔬菜、茶葉、干貨類、肉制品、水產(chǎn)品進(jìn)行了重復(fù)性試驗和靈敏度試驗。結(jié)果表明,該方法檢測這6類產(chǎn)品中的檢測低限均分別達(dá)到0.01mg/kg(六六六)、0.02mg/kg(滴滴涕),加標(biāo)回收率80.1%～109.1%,變異系數(shù)1.88%～12.0%。采用振蕩離心提取方法,提高了樣品前處理的通量;降低進(jìn)樣口溫度,有效避免了被測物的降解;考慮標(biāo)準(zhǔn)品中異構(gòu)體之間的相互轉(zhuǎn)化關(guān)系,使定量更為準(zhǔn)確。

食品中六六六、滴滴涕殘留量的測定GB/T 5009.19-2003  測試譜圖：



Determination of 666 and DDT residues in food GB/T 5009.19-2003
Determination of 666 and DDT residues in food GB/T 5009.19-2003 Details:

Name: Agilent 7890B glass column

Specifications: 2m*1/4, 80-100 mesh

Model: 1.5%OV-17+2%QF-1/Chromosorb AW DMCS (80-100 mesh)

No.: 20220818001

Temperature: 240°C

Application: GB/T 5009.19-2003 Determination of 666 and DDT residues in food

GB/T 5009.19-2003 Determination of the residues of hexachloropyridine and DDT in food
Instead of GB/T 5009.19-1996, it was replaced by GB/T 5009.19-2008 Determination of multi-component residues of organochlorine pesticides in food
This standard specifies the method for the determination of hexahexahexanol (HCH) and DDT (DDT) residues in food.
This standard is applicable to the determination of 666 and DDT residues in various foods.

For the determination of the residues of DDT in food, sulfonation method is mostly used in domestic purification. But the main problem with this method is that the phenomenon of emulsification is serious, sometimes it even becomes paste, and it is difficult to stand for stratification. If the purification time is prolonged It also affects the accuracy of the results, especially the results of β-666 and δ-666 are low.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a vortex centrifugal extraction, gas chromatography detection technology, which can be used in plant foods (such as fruits, vegetables, grains, tea, dry goods, etc.) and animal foods (such as meat A method for rapid detection of 666 and DDT residues in fish, aquatic products, poultry, etc. Using this method, the repeatability test and sensitivity test were carried out on fruits, vegetables, tea, dry goods, meat products and aquatic products respectively. The results showed that the detection limit of the six types of products by this method reached 0.01mg/kg (666) and 0.02mg/kg (DDT) respectively, the recovery rate of standard addition was 80.1%-109.1%, and the coefficient of variation was 1.88% ~12.0%. The oscillating centrifugation extraction method was adopted to improve the throughput of sample pretreatment; to reduce the inlet temperature, the degradation of the analyte was effectively avoided; the mutual conversion relationship between the isomers in the standard product was considered to make the quantification more accurate.

Determination of 666 and DDT residues in food GB/T 5009.19-2003 Test spectrum: