Objective:To establish the method for determination of bornyl acetate in Kaiweixiaoshi oral liquor by gas chromatography.Methods:Naphthalene has been used as the internal standard substance in internal standard method. The GC system consisted of stainless steel column, PEG 20M as the stationary phase, nitrogen as the carrier gas, and FID as the detector.Results:Both bornyl acetate in the preparation and naphthalenet in internal standard have got satisfactory separation under the chromatographic condition. The mean recovery of bornyl acetate was 95.29%, and RSD was 0.61%.Conclusion: The method is sensitive, accurate and reproducible, and it can be used to control the quality of the preparation.

Objective To understand the current status of disinfection and sterilization of medical institutions at all levels in 30 counties in Chongqing ,and to guide the work that medical institutions regulate and improve the quality of disinfection and steriliza‐tion ,and urge the relevant departments to strengthen the monitoring of disinfection quality of medical institutions .Methods Using field investigation and sampling inspection method ,the disinfection quality of medical institutions at all levels in 30 counties of Chongqing city was monitored and analyzed .Results From 30 districts and counties ,the medical institutions were sampled from 28 510 parts ,the overall average pass rate of 93 .3% .The qualified rate of medical institutions at all levels from high to low were as follows ,the village health room (96 .7% ) ,urban community medical institutions (96 .6% ) ,district level medical institutions (96 .1% ) ,individual clinic (90 .9% ) ,private hospitals (93 .7% ) and township (street) medical institutions (86 .5% ) .Different types of medical institutions got different qualified rate ,and the difference was statistically significant(χ2 =666 .84 ,P<0 .01) .Pro‐ject with the lowest qualified rate was radiation intensity of ultraviolet lamp(52 .8% ) ,secondly was indoor air (80 .4% ) and differ‐ent projects′qualified rate was significantly different(χ2 =1 706 .81 ,P<0 .01) .Conclusion Medical and health institutions at all levels′s disinfection quality were generally good ,but the village health room monitoring coverage ,ultraviolet light intensity and oth‐er individual monitoring projects need to be improved .