2019.03.19日，实验员汪盈春在查看2019.03.18日在Ag

On March 19, 2019, experimenter Wang Yingchun found that the peak area of ​​SYSTEM was 10 times smaller than the normal value when he checked the maps of the related substances of the American standard and domestic standards of ticagrelor detected on the Agilent45 # instrument on March 18, 2019. The peak area is about 6, the normal value of the SYSTEM peak area is about 60, the SYSTEM peak area should be 1/200 times of the high concentration standard solution, and the actual detection result is 1/2000 times the peak area of ​​the sample solution. (The sample concentration is about 1 mg / ml at the same concentration as the high concentration standard).

On the 19th of 2019.03.19, the experimenter Wang Yingchun, looking at the map of the Tegrelo U.S. standard and domestic standard related substances tested on the Agilent45 instrument on the 18th, found that the SYSTEM peak area was relatively large. The normal value is 10 times smaller, the normal value of the SYSTEM peak area is about 60, the SYSTEM peak area should be 1/200 times the high concentration standard solution, and the actual test result is 1/2000 times the peak area of the sample solution. (The sample is about 1 mg/ml of the same concentration as the high concentration standard).

On March 19, 2019, when Wang Yingchun, an experimenter, looked at the atlas of related substances in tigrillo American Standard and domestic standard detected on Agilent 45 × instrument on March 18, 2019, he found that the system peak area was 10 times smaller than the normal value, the system peak area was about 6, the normal value of the system peak area was about 60, the system peak area should be 1 / 200 times of the high concentration standard solution, while the actual detection result was 1 / 2000 times of the peak area of the sample solution. (the concentration of sample and high concentration standard is about 1mg / ml).<br>