The possible reason for this deviation is that the method does not specify that "instrument cleaning or system balance, should be switched between the main road and bypass of the sample valve", resulting in the sampler six-way valve inside the Mikafin net residue, so that the peak area of this experiment abnormal, the system adaptive needle does not meet the requirements. <br><br>1. No similar deviation occurred in the last two years, and no impact on the batch of products tested in the laboratory. 2. Because the system adaptability is only used to evaluate the stability of the instrument, does not participate in the calculation of the sample results, and the system adaptability has no effect on the naturalization response area, 2089-191205 batch resin elution (4) using the normalized method to calculate RRT1.18 impurities, the results meet the requirements, after the previous 8 needle system adaptive pressure comparison analysis, pressure is normal, so the data has no effect on the initial detection data testreport. 3.2020.01.02, the Department of Metrology Wang Zhi on THE CAY-Y66-02 instrument repeated testing, test results are in line with the requirements, while the batch of Mikafen clean sodium resin elution liquid concentrate test results meet the requirements, follow-up continue to follow up the analysis of the quality of the product, further research on whether this deviation will have an impact on the quality of the finished product. 4. The product batch detected on the CAY-Y66-02 liquid phase instrument did not find a similar situation, so there is no risk to the historical product batch detected on the instrument. <br><br>CP-TZ-API-D-TZ-API-IP-19046-20001:2089-191205 batch resin elution (4) issues a test report with initial inspection data.<br>CP-TZ-API-D-TZ-API-IP-19046-20002: Follow-up to CAY-Y66-02 liquid phase for 3 months to see if a similar situation has occurred.<br>CP-TZ-API-D-TZ-API-IP-19046-20003: Revise H0-TM-23103 Liquid Chromatograph maintenance procedures to add in daily maintenance that "when flushing the instrument or balancing system, switch the sample valve between the main and bypass, avoid residual or crystallizing at the six-pass valve" description, and train the relevant personnel.
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