首页|高效液相色谱-质谱法测定6种玉米赤霉醇类真菌毒素

高效液相色谱-质谱法测定6种玉米赤霉醇类真菌毒素

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利用通过式固相萃取结合高效液相色谱-串联质谱法建立食品中α-玉米赤霉醇、β-玉米赤霉醇、α-玉米赤霉烯醇、β-玉米赤霉烯醇、玉米赤霉酮和玉米赤霉烯酮6种真菌毒素的检测方法.样品酶解后经乙腈提取,通过式固相萃取柱净化,液相色谱-质谱/质谱仪测定,采用同位素内标法定量.6种真菌毒素在曲线浓度范围内(2.5~125 ng/mL)线性关系良好,在2.0,4.0和20.0 μg/kg这3个添加水平的平均回收率为72.6%~110.4%,相对标准偏差为1.8%~14.6%(n=6),6种真菌毒素的检出限均为1.0 μg/kg,定量限均为2.0 μg/kg.该方法操作简便、灵敏度高、重复性好、基质干扰小,能有效提高样品的检测效率,适用于食品中6种玉米赤霉醇类真菌毒素的检测.
Simultaneous Determination of 6 Zearmycotoxins in Foods by High Performance Liquid Chromatography-Tandem Mass Spectrometry
A method for the determination of α-zearalenol,β-zearalenol,α-zearalenol,β-zearalenol,zearalenone and zearalenone mycotoxins in foods by pass-through solid phase extraction-high performance liquid chromatography-tandem mass spectrometry(SPE-HPLC-MS/MS)was established.The samples were extracted by acetonitrile after enzymatic hydrolysis,and the extract was purified by pass-through solid phase extraction column and passed through an amide(3.0 mm× 100 mm,1.7 μm)chromatography column.After separation,it was detected in the multiple reaction monitoring(MRM)mode,and quantitated by an internal standard method.The linear relationships of the six mycotoxins were good in the concentration range of the curve.The average recoveries ranged from 72.6%to 110.4%,and the relative standard deviations were between 1.8%and 14.6%(n=6).The detection limits of 6 mycotoxins were 1.0 μg/kg,and the limits of quantification were 2.0 μg/kg.The method is simple,sensitive and repeatable,and has low matrix interference,which can effectively improve the detection efficiency of samples,and is suitable for the detection of 6 zearzol mycotoxins in food.

solid phase extractionmycotoxinhigh performance liquid chromatography-tandem mass spectrometryfood

吴雪莹、戴琴、付睿婕、黄婷、肖全伟、宋娟

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成都市食品检验研究院(成都 611130)

国家市场监管重点实验室(营养与健康化学计量及应用)(北京 100029)

固相萃取 真菌毒素 高效液相色谱-串联质谱 食品

2024

食品工业
上海市食品工业研究所

食品工业

影响因子:0.47
ISSN:1004-471X
年,卷(期):2024.45(7)