CAJ | 학술논문

蛋白饲料经干灰化处理,以5%HC1作为溶解介质,电感耦合等离子体发射光谱法(ICP-AES)测定矿样中铜、铁、锰、锌等微营养元素含量,方法基体效应较小,共存元素、各待测元素之间没有明显干扰.使用该法分析3种不同类型的实际样品(豆粕、浓缩蛋白、鱼粉),分析结果与国家标准方法测定值一致,均在允许误差范围内.方法回收率为Cu920%、Fe103.2%、Mn98.0%、Zn104.0%,方法的精密度(RSD,n=12)0.90%～1.50%.与现行单元素分析方法相比,分析周期短,适用于大批量蛋白饲料的日常检验.
단백사료경간회화처리,이5%HC1작위용해개질,전감우합등리자체발사광보법(ICP-AES)측정광양중동、철、맹、자등미영양원소함량,방법기체효응교소,공존원소、각대측원소지간몰유명현간우.사용해법분석3충불동류형적실제양품(두박、농축단백、어분),분석결과여국가표준방법측정치일치,균재윤허오차범위내.방법회수솔위Cu920%、Fe103.2%、Mn98.0%、Zn104.0%,방법적정밀도(RSD,n=12)0.90%～1.50%.여현행단원소분석방법상비,분석주기단,괄용우대비량단백사료적일상검험.
After dry ashing and being dissolved in HC1 (5%), copper, iron, manganese and zinc in protein feed-stuffs were determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The interfer-ence among detected elements was not evident. Different samples were analyzed and the analytical results were in good agreement with the values with the national standard method. The recoveries of the method is 92.0% for Cu,103.2% for Fe, 98.0% for Mn, 104.0% for Zn with the precision of 0.90%～1.50% RSD (n=12). The proposed meth-od meets the requirements for commodity inspection of protein feedstuffs and can be applied to routine inspection.