Objective To make a method for determination of 2-chloromethyl-oxirane in water by gas chromatography. Methods 2-chloromethyl-oxirane in water was extracted by dichloromethane. The extraction was highly condensed.The condensate was isolated through FFAP capillary, and than was detected by hydrogen flame ionization detector. Results The linear range was 0.502-10.04 ?g/ml, r=0.999 2, the detection limit was 0.000 5 mg/ml, recovery rates were 90.3%-99.9%, RSDs were 3.5%-4.3%. Conclusion This method is simple, sensitive, accurate and suitable for determination of trace 2-chloromethyl-oxirane in soak water used for safety assessment of water supply equipments and coatings paints.

Objective To investigate the relationship of hyperglycemia to trauma score,infection,MODS and survival time of the dead patients caused by trauma.Methods A total of 455 cases of dead trauma patients selected randomly from our hospital,were divided into two groups with normal blood glucose(n=57) or hyperglycemia(n=298).The RTC,GCS and the cases of infection and MODS as well as the survival time of two groups were recorded,and the coefficients of relationship between the blood glucose and the indexes of MODS in the dead trauma patients were calculated.Results The levels of RTC,GCS in the group with hyperglycemia were higher than that with normal blood glucose(P

ObjectiveTo investigate the value of remote consultation of heart sound acquisition in screening and referral of neonates with congenital heart diseases （CHD） in primary hospitals. MethodsA total of 4 030 neonates with non-critical diseases were selected. They were born in Shanghai Pudong New Area Maternal and Child Health Hospital from November 5， 2019 to March 31， 2021. After birth， routine cardiac auscultation was performed and remote consultation of heart sound collection were performed at the same time in combination with percutaneous oxygen saturation measurement to screen CHD. The children with any positive screening index were advised to verify the diagnosis by cardiac ultrasound examination in Shanghai Children's Medical Center. The diagnostic value of different screening methods was compared. ResultsA total of 110 cases were detected positive by routine screening. Among them， 16 cases were lost to follow-up， and 46 cases were confirmed by cardiac ultrasound examination， with a positive diagnosis rate of 48.94% （46/94）. A total of 51 cases were detected positive by routine screening and remote consultation of heart sound collection simultaneously. Among them， 42 cases were confirmed by cardiac ultrasound examination， with a positive diagnosis rate of 82.35% （42/51）. The difference between the two positive diagnosis rates was statistically significant （P<0.001）. ConclusionRemote consultation of heart sound acquisition on the basis of routine neonatal CHD screening can effectively improve the positive diagnosis rate of CHD screening in primary hospitals， and reduce unnecessary referrals. This method is simple and feasible. It has practical value in primary hospitals that lack professional technicians for the diagnosis and treatment of CHD.