On October 10, 2019, at 13:55, analyst Yang Bingquan injected the Milbemycin Concentrate 4037-A190906 on CAY-107-03 and found that the instrument status was displayed as a yellow light when the sequence was run to the needle standard solution. 2. Not connected, check the reason for not being ready and display "Not ready condition: No tray", that is, the injector has no sample tray. <br><br>This deviation is an abnormal accidental failure of the instrument's main board parameters. The sample tray cannot be identified and the sample injection is aborted. <br><br>1. The deviation is caused by the failure of the instrument due to instrument failure, which has nothing to do with the quality of the product itself. <br>2. The spectrum and data of the Milbemycin concentrated solution tested in this experiment are discarded and retained. Under the original conditions unchanged, the 4037-A190906 batch of Milbemycin Concentrated Sample Solution was re-tested, and the retest result was 299077.4 μg / ml, the primary yield and total extraction yield calculated from this test result are 78.8% and 62.4%, respectively, which meets the technological requirements of primary yield and 75% -85% and total extraction yield of 60 ~ 70%. <br><br>.Reservation of invalid maps. The 4037-A190906 batch of Milbemycin concentrated sample solution was retested and a test report was issued. <br>2. Cold start the CAY-107-03 liquid chromatograph sampler module. <br>3. Follow up the observation of CAY-107-03 liquid chromatograph for 3 months to see if there is a similar situation.
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