粮油食品科技
糧油食品科技
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SCIENCE AND TECHNOLOGY OF CEREALS,OILS AND FOODS
2015年
3期
69-72
,共4页
欧阳毅%程树峰%唐芳%张海洋
歐暘毅%程樹峰%唐芳%張海洋
구양의%정수봉%당방%장해양
小麦 DON%酸性氧化铝%净化%HPLC 检测
小麥 DON%痠性氧化鋁%淨化%HPLC 檢測
소맥 DON%산성양화려%정화%HPLC 검측
DON in wheat%acidic alumina%purification%HPLC
建立了一种新的小麦脱氧雪腐镰刀菌烯醇(DON)高效液相色谱检测方法。采用聚乙二醇和水对小麦样品进行振荡提取,提取液分别用活性炭、柱层析硅胶、中性氧化铝、酸性氧化铝、碱性氧化铝净化,比较几种吸附剂对小麦 DON 净化效果。结果表明,用酸性氧化铝净化效果最好,除杂率为66.3%,净化液通过0.22μm 聚醚砜滤膜可直接用于 HPLC 检测;色谱条件:分离柱为 C18柱;流动相为甲醇∶水(20∶80);波长为230 nm。三水平加标平均回收率为91.0%~103.7%,不同污染水平的小麦阳性样品精密度试验相对标准偏差(RSD)为2.3%~8.5%;与免疫亲和柱(IAC)净化方法比较,方法间误差为2.3%~8.4%。本方法具有操作简便、快速、准确、成本低,可满足小麦 DON 大宗样品定量测定的要求。
建立瞭一種新的小麥脫氧雪腐鐮刀菌烯醇(DON)高效液相色譜檢測方法。採用聚乙二醇和水對小麥樣品進行振盪提取,提取液分彆用活性炭、柱層析硅膠、中性氧化鋁、痠性氧化鋁、堿性氧化鋁淨化,比較幾種吸附劑對小麥 DON 淨化效果。結果錶明,用痠性氧化鋁淨化效果最好,除雜率為66.3%,淨化液通過0.22μm 聚醚砜濾膜可直接用于 HPLC 檢測;色譜條件:分離柱為 C18柱;流動相為甲醇∶水(20∶80);波長為230 nm。三水平加標平均迴收率為91.0%~103.7%,不同汙染水平的小麥暘性樣品精密度試驗相對標準偏差(RSD)為2.3%~8.5%;與免疫親和柱(IAC)淨化方法比較,方法間誤差為2.3%~8.4%。本方法具有操作簡便、快速、準確、成本低,可滿足小麥 DON 大宗樣品定量測定的要求。
건립료일충신적소맥탈양설부렴도균희순(DON)고효액상색보검측방법。채용취을이순화수대소맥양품진행진탕제취,제취액분별용활성탄、주층석규효、중성양화려、산성양화려、감성양화려정화,비교궤충흡부제대소맥 DON 정화효과。결과표명,용산성양화려정화효과최호,제잡솔위66.3%,정화액통과0.22μm 취미풍려막가직접용우 HPLC 검측;색보조건:분리주위 C18주;류동상위갑순∶수(20∶80);파장위230 nm。삼수평가표평균회수솔위91.0%~103.7%,불동오염수평적소맥양성양품정밀도시험상대표준편차(RSD)위2.3%~8.5%;여면역친화주(IAC)정화방법비교,방법간오차위2.3%~8.4%。본방법구유조작간편、쾌속、준학、성본저,가만족소맥 DON 대종양품정량측정적요구。
A new method was established to detect deoxynivalenol (DON)in wheat by high liquid chro-matography detection.The wheat samples were treated by oscillation with polyethylene glycol and water. Some kinds of adsorption materials like activated carbon,silica gel column chromatography,neutral alu-mina,acidic alumina,basic alumina were used to purify the extract,respectively,to compare the purif-ying effect on DON in wheat.The result showed that acidic alumina had the best purifying effect with the rate of removing impurities 66.3%.The purification liquid though 0.22 μm polyethersulfone membrane was detected by HPLC directly with C18 column,mobile phase of methanol∶water (20∶80)and wave-length of 230 nm.The percent recovery in three levels was 91.0%~103.7%.The range of the relative standard deviation (RSD)of positive wheat samples with different pollution levels was 2.3%~8.5%. Compared with the result of another method by immunoaffinity column cleanup,the deviation of two methods was 2.3%~8.4%.The characteristic of simple,rapid,accurate,and low cost makes this method suitable to meet the needs of quantitive detection of DON in wheat with large number of samples.