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OA show ('918 '); [Ministry of Agriculture issues compulsory industry standard] new page 1 Determination of clenbuterol hydrochloride in feed xwu clenbuterol hydrochloride is an adrenergic nerve stimulant, belonging to β Stimulant hormone is a kind of human medicine, which is used to treat asthma, chronic bronchitis, emphysema and other diseases Due to its role in promoting animal growth, reducing carcass fat content and improving production performance, some profiteering illegal traders, regardless of its toxic and side effects on the safety of production and people's health in the breeding industry, peddled in some areas, with a very bad impact In 1999, our department began to carry out the special investigation and treatment of illegal drugs such as Clenbuterol Hydrochloride nationwide Because there was no unified test method standard at that time, international standards or foreign standards were adopted in different places Due to the inconsistent method standards and poor comparability, it was very difficult to investigate and deal with the evidence Xwu in view of the lag of the determination standard of clenbuterol hydrochloride, our department first organized the establishment of the determination standard of clenbuterol hydrochloride in feed The standard has the following characteristics: first, xwu is practical This standard can be used not only for the detection of clenbuterol hydrochloride in various compound feeds, but also for the detection of clenbuterol hydrochloride in concentrated feed, additive premixed feed and single feed Xwu is scientific This standard is not only suitable for the current needs, but also in line with international methods There are two methods in this standard, high pressure liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) HPLC is a semi confirmatory method, which is quick and easy to determine The minimum detection limit is 0.05 mg / kg, which is lower than that of enzyme-linked immunosorbent assay (ELISA) and other screening methods GC-MS confirmation method has enough monitoring sensitivity, and its minimum detection limit is 0.0l mg / kg, which is mainly used for final confirmation and arbitration Third, xwu is in line with international testing methods This standard is the first time in China to apply large-scale precision instrument gas chromatography-mass spectrometry to the standard method of feed detection It marks the development of feed detection technology to trace and trace levels in China Even in the case of the lowest detection limit, the average recovery rate of the method is over 93.7% The background interference test of different formula feed shows that the method has good stability, and the technical level of the standard has reached the international advanced level after being approved by the peer experts Xwu we believe that the release of this standard will provide strong technical support for the national investigation and punishment of illegal production, sale and use of clenbuterol hydrochloride Xwu
China feed industry information network xwu (author:)