發(fā)布時(shí)間：2018-01-10 17:25

  本文關(guān)鍵詞：氣相色譜-質(zhì)譜法測(cè)定食品中黃樟素及其衍生物含量　出處：《分析測(cè)試學(xué)報(bào)》2016年12期 　論文類型：期刊論文

  更多相關(guān)文章： 氣相色譜-質(zhì)譜(GC-MS) 選擇離子掃描(SIM) 固相萃取(SPE) 黃樟素 香料添加劑 食品

【摘要】：建立了調(diào)味制品(調(diào)味料、番茄醬、醬油、花椒)、飲料(碳酸飲料、乳飲料、果汁)、肉制品(香腸、肉罐頭、肉湯)、水果制品(果凍、果醬)、水產(chǎn)品(干魚肉、魚罐頭、魚肉泥)、小吃類(油炸薯片、糖果、巧克力)等18種食品中黃樟素、異黃樟素、二氫黃樟素含量的分析方法。樣品在氯化鈉鹽析作用下,經(jīng)二氯甲烷-乙腈提取,無水硫酸鈉-氟羅里硅土柱吸附極性物質(zhì)和水分。復(fù)雜樣品需再經(jīng)PRi ME HLB固相萃取柱(SPE)凈化,5%苯基-95%甲基聚硅氧烷毛細(xì)管氣相色譜柱分離,選擇離子質(zhì)譜技術(shù)監(jiān)測(cè),內(nèi)標(biāo)法定量。在最佳實(shí)驗(yàn)條件下,3種黃樟素在25~5 000μg/kg范圍內(nèi)呈良好的線性關(guān)系,相關(guān)系數(shù)(r2)≥0.9981,方法檢出限(LOD)和定量下限(LOQ)分別為20μg/kg和50μg/kg,3個(gè)加標(biāo)水平的回收率為77.6%~100.9%,相對(duì)標(biāo)準(zhǔn)偏差(RSD)為3.7%~13.6%。多種實(shí)際樣品的測(cè)定結(jié)果表明,該方法準(zhǔn)確可靠,適用于食品中3種黃樟素及其衍生物的定量和定性分析。
[Abstract]:Seasoning products (seasoning, ketchup, soy sauce, prickly ash, soft drinks (carbonated drinks, milk drinks, juices), meat products (sausage, canned meat, broth, fruit products (jelly, jam)) were established. Aquatic products (dried fish, canned fish, fish paste, snacks (fried potato chips, candy, chocolate) and other 18 kinds of food safrole, isosafrole. Method of analysis of dihydrosafrole content. The sample was extracted by dichloromethane-acetonitrile under the action of sodium chloride salting out. Anhydrous sodium sulfate-fluorosilicate column was used to adsorb polar substances and water. The complex samples need to be purified by PRi ME HLB solid phase extraction column (SPE). 5% phenyl 95% methyl polysiloxane was separated by capillary gas chromatography and monitored by ion-mass spectrometry. There was a good linear relationship among the three safrole compounds in the range of 25 渭 g / kg, the correlation coefficient (r _ 2) 鈮，

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