台灣地區乳製品及嬰幼兒食品中多氯聯苯殘留量調查

Survey on the Polychlorinated Biphenyls Residues in Dairy Products, Infant and Junior Foods in Taiwan

鄭維智(Wei-Chih Cheng) ； 陳素燕(Su-Yen Chen) ； 張碧秋(Pi-Chiou Chang) ； 周薰修(Shin-Shou Chou)

《藥物食品檢驗局調查研究年報》 23號 (2005/09) Pp. 173-184

https://doi.org/10.6946/ASRNL.200509.0173

摘要

為了解台灣地區乳製品及嬰幼兒食品中多氯聯苯的殘留量情形，92年度至台北市各大超市進行採樣，共計採得檢體100件，包括乳製品74件及嬰幼兒食品26件。檢體以乙醚抽取油脂後，進行皂化、萃取、濃縮，再以濃硫酸及酸性矽膠管柱進行淨化，最後檢液以GC/ECD進行分析檢測，以GC/MS/MS確認。本研究採用多重分析方法檢測34種多氯聯苯同源物，方法之最低檢出限量為36ng/g（脂肪基準），平均回收率介於79.6103.4%。檢驗結果顯示乳製品檢體中，11件檢出多氯聯苯同源物，包括奶粉4件、鮮乳1件、優酪乳1件、煉乳1件、乾酪2件及冰淇淋2件，含量範圍為3.517.6ng/g（脂肪基準）；嬰幼兒食品檢體中，5件檢出多氯聯苯同源物，包括牛奶配方嬰兒奶粉3件、黃豆蛋白水解配方嬰兒奶粉1件、嬰幼兒罐頭食品1件，含量範圍為3.521.0ng/g（脂肪基準）。檢驗結果均與衛生標準規定相符。

關鍵字

多氯聯苯 ； 乳製品 ； 嬰幼兒食品 ； 氣相層析儀 ； 氣相層析串聯質譜儀

並列摘要

Asurvey of PCB residues in dairy products, infant and junior foods in Taiwan is reported for understanding the PCB residues. One hundred samples including 74 dairy products and 26 infant and junior foods were sampled from retail outlets and analyzed by GC/ECD and confirmed by GC-MS/MS. Sample lipids were extracted by n-hexane, saponified, extracted by n-hexane, concentrated, and then cleaned up by sulfuric acid following acid silica column. Thirty-four polychlorinated biphenyl (PCB) congeners were analyzed in this study. The recovery studies were carried out by spiking PCB congeners at the level of 40 ng/g fat. Average recoveries were in the range of 79.6 103.4%. This method was applied to samples analysis, 11 samples of dairy products were detected to contain PCB congeners ranged from 3.5-17.6 ng/g fat and 5 samples of infant and junior foods were ranged from 3.5-21 ng/g fat. In this study, penta and hexachlorinated PCBs were the major congeners for the fish and shellfish samples in Taiwan. All of the samples were found to comply with the regulation limit for PCB.

並列關鍵字

PCB congeners ； dairy products ； infant and junior foods ； GC/ECD ； GC-MS/MS