Table 6: HPLC observation of test sample with standard.

Serial number Retention time (min) Area (mV·s) Height (mV) Area (%) Height (%) WO5 (min) 01 2.590 302.087 16.545 9.9 6.2 0.19 02 3.083 2609.617 247.284 85.5 92.8 0.16 03 3.943 142.206 2.523 4.7 0.9 1.37 Total 3053.911 266.352 100.0 100.0

Retention time of test: 2.590 min; retention time of standard: 2.600 min.