1.1”This test method covers the determination of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with normal voltage mode and UV detection. It is applicable for 4-CBA from 5 to 400 mg/kg and for p-TOL from 10 to 400 mg/kg, respectively.

Product Details

Published:

10/01/2020

Number of Pages:

7

File Size:

1 file , 160 KB

Redline File Size:

2 files , 340 KB