The regulation banned the use of avoparcin , clenbuterol , chloramphenicol , dienoestrol , diethylstilboestrol , hexoestrol and salbutamol , and set down the mrls for cloxacillin , dicloxacillin , ampicillin , amoxycillin , benzylpenicillin , sulfonamides , chlortetracycline , oxytetracycline , doxycycline and tetracycline on december 31 , 2001 . the second phase extended mrl controls to nine more chemicals - carbadox , dihydrostreptomycin , dimetridazole , furaltadone , furazolidone , josamycin , metronidazole , streptomycin and trimethoprim 第二阶段规管另外九种化学物的最高残馀限量,这九种化学物分别为卡巴氧、二氢链霉素、二甲硝咪唑、 ?喃他酮、 ?喃唑酮、交沙霉素、甲硝唑、链霉素及甲氧苄氨嘧啶。
These sensor prepared have been applied to analysis of different species . ( 1 ) carbazole is a promising pharmaceutical species . a novel optical sensor for determining doxycycline based on the fluorescence quenching of n - allylcarbazole immobilized on an quartz glass plate surface by covalent bonding has been described ( 2 )用荧光基团2 -氨基苯并噻唑与对烯丙氧基苯甲醛合成了一种新的schiff碱类化合物,研制成了一种schiff碱新颖光化学传感器,用于呋喃唑酮的测定。