RESUMEN
Objective To establish a simultaneous determination method of cyclohexane,cyclohexanone and cyclohexanol in workplace air. Methods To collect the cyclohexane,cyclohexanone and cyclohexanol from the workplace air by pumping the air through the active carbon tube,resolve them with alcohol and then test the content of them by capillary gas chromatography. Results It was proved that these samples were separated effectively. The final measurement range of cyclohexane,cyclohexanone and cyclohexanol was 30-1 000 ?g/ml,20-1 000 ?g/ml and 20-880 ?g/ml respectively,the linear equation was y=257.4x+987.1 (r=0.999 9),y=239.9x+664.6 (r=0.9999 ) and y=192.4x+607.1 (r=0.999 9) respectively,the detection limit of was 1.5 ?g/ml,0.5 ?g/ml and 1.0 ?g/ml respectively. The minimum detectable concentration was 1.0 mg/m3,0.3 mg/m3 and 0.7 mg/m3 respectively (collected 1.5 L air sample). The efficiency of resolution was 90.1%,91.2% and 93.1% respectively. Conclusion The method is suitable for the simultaneous determination of the cyclohexane,cyclohexanone and cyclohexanol in the workplace air.
RESUMEN
Objective To evaluate the effect s of Ginkgo Leaf Extract and diphyridamole injection on patient s with CKD.Methods 60 patients with CKD were made up with 36 cases in Ⅲ phase and 24 cases in Ⅳ phase.The patients with CKD were given Ginkgo Leaf Extract and diphyridamole injection,20 mL/d,for 15 days.The parameters of clini- cal condition,function of kidney,ALB and blood fat were observed before and after the therapy and the data were ana- lyzed.Results There were 28 cases that clinical condition was better; 24cases no difference; and 8 cases worse.The level of TC and TG were significantly decreased after the therapy,as well as the uric protein quality of 24 hours(P0.05). Conclusion Essential treatment for CKD combined with Ginkgo Leaf Extract and diphyridamole injection can improve nutrition,delay the process of CKD and protect the renal function in patient s with Ⅲ phase.