Using benzene as internal standard, the calibration factors of derivative of aldehydes 2,4 - dinitrophenylhydrazine ( DNPH ) were measured.将醛类物质与2, 4- 二硝基苯肼 ( DNPH ) 的衍生反应液直接进样,以苯为内标物,测定了甲醛 、 乙醛等醛类物质DNPH衍生物的校正因子....
供血者的血和受血者的血是相容的.The donor's blood is compatible with the recipient's.输血时供血者与受血者应是同一血型以防止凝集.In a transfusion, donor and recipient should be of the same blood group to prevent agglutination.这就保证了献血对于供血者和受血者来说都是安全...