Objective To investigate the thyroglobulin antibody (TGAb) and thyroid microsomal anti-bodies (TMAb) under different conditions in the serum Stability. Methods Measured by radioimmunoassay place at room temperature, 4℃ refrigerator, ice conditions, the different time periods in serum samples of TGAb and TMAb activity. Results Three conditions in the storage Two days later the results of no signifi-cant difference; stored 4 days at room temperature samples TGAb and TMAb inactivation; storage 6 days, 4 ℃ refrigerator under the conditions of the samples TGAb and TMAb inactivation; store 29 days later, the frozen samples under the conditions of TGAb and TMAb inactivation. Conclusion 4 ℃ refrigerator used to preserve blood samples for further screening for thyroid antibodies, the most suitable for day-to-day clinical work.

Objective To quickly understand whether the newly introduced XE-2100 automatic hematology analyzer meets the precision promised by the manufacturer .Methods After adjusting and calibrating the new hematology analyzer ,the anticogulated blood samples by EDTA-K2 were detected for 10 times and the main parametric precisions were calculated by the Sigma unit .Results The Sigma score of this automatic hematology analyzer labeled by the manufacturer was 39 ,the actual coefficient of variation (CV) in 8 indexes was less than that labeled by the manufacturer ,the operating Sigma score was full mark 48 .Conclusion The ac-tual precision of the XE-2100 automatic hematology analyzer is preliminarily reached the precision promised by the manufacturer , the operating Sigma score is in the high quality level and achieves the expected requirements in daily use .