由于对氨基苯胂酸广泛用于畜禽饲料添加剂中,不仅对畜禽产品造成残留,而且还对环境带来污染,日益威胁生态环境,为此我们进行了本研究。
With the extensive use in addition agent of multipara, the arsanilic acid has resulted in remnant in products and environment pollution. So we carry out this research.
应用日立835-50型氨基酸自动分析仪测定阿苯达唑作用体外培养猪囊虫的氨基酸含量。
The contents of free amino acid (FAA) in Cysticercus cellulosae affected by albendazole in vitro were determined by using 835-50 type of automatic amino acid analyzer.
本文简要说明了这种仪器的原理、结构和特征,并给出了制备分离甾族反应混合物、吲哚类植物激素、二硝基苯氨基酸的应用结果。
In this paper, the results of preparative separations of steroid reaction pro-ducts, indole auxins, and DNP amino acid mixture with suitable two-phasesolvent systems is introduced.
以对氨基水杨酸为原料,经酯化、酰化和烃化反应得乙氧苯酯,总收率为87.4%。
Ethopabate is prepared via esterification, acylation and alkylation from p-aminosalicylic acid in87.4% overall yield.
结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应,只需要一步结晶即可得头孢氨苄,总收率89.4%。
Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% .
以苯并恶唑酮为原料,经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚,总收率达70%以上。
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料,经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚,总收率达70%以上。
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
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