饲料微波消解液组成与配比对消解效果的影响研究  

Study on the influence of composition and ratio of feed microwave digestion solution on digestion efficiency

作　　者：郭浩龙 吴树强 GUO Hao-long;WU Shu-qiang(CNOOC Tianjin Chemical Research and Design Institute Co.Ltd,Tianjin 300131,China;Center for Tianjin Agricultural Ecological Environment Monitoring and Agricultural Product Quality Inspection,Tianjin 300192,China)

机构地区：[1]中海油天津化工研究设计院有限公司,天津300131 [2]天津市农业生态环境监测与农产品质量检测中心,天津300192

出　　处：《粮食与饲料工业》2024年第3期75-78,83,共5页Cereal & Feed Industry

摘　　要：针对饲料中铅含量检测,采用微波消解法对饲料进行前处理,重点研究了消解液不同组成与配比对消解结果的影响,以探寻对各种饲料普遍通用的消解液,推动将微波消解法列为国标饲料中铅含量检测的前处理方法之一。实验结果表明,对于所研究的10种饲料和饲料添加剂,消解液组成分别为8 mL硝酸溶液+2 mL氢氟酸和8 mL硝酸溶液+2 mL氢氟酸+12 mL硼酸溶液对其中8种饲料和饲料添加剂均呈现非常理想或比较理想的消解效果,可将沉淀(或絮状物)去除或只有极少量沉淀物(或絮状物)残留。经综合考虑最终选定消解液含8 mL硝酸溶液+2 mL氢氟酸为普适性最广的消解液,可保证消解完全、彻底。Aiming at the detection of lead content in feed,microwave digestion method was used to pre-treat feed,and the influence of different composition and ratio of digestion solution on the digestion result was mainly studied,so as to explore the universal digestion solution for various feeds,and promote the microwave digestion method to be listed as one of the pre-treatment methods for the detection of lead content in national standard feed.The experimental results showed that the digestion solution consisted of 8 mL HNO_3+2 mL HF and 8 mL HNO_3+2 mL HF + 12 mL boric acid,respectively had very ideal or relatively ideal digestion effects on eight among ten kinds of feeds and feed additives studied in this work.The precipitation(or floc) could be removed thoroughly or only a very small amount of sediment(or floc) was retained.After comprehensive consideration,the digestion solution containing 8 mL HNO_3+2 mL HF was finally selected as the most universal digestion solution,which could ensure complete and thorough digestion.

关 键 词：饲料 微波消解 消解液 消解效果 

分 类 号：S816.17[农业科学—饲料科学]