ASTM D7881-20

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ASTM D7881-20

$26.00

Standard Test Method for Determination of 4-Carboxybenzaldehyde and <emph type="bdit" >p</emph>-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
standard by ASTM International, 10/01/2020

Format: PDF      In Stock

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Description

1.1”This test method2 covers the determination of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with reverse voltage mode and UV detection. It is applicable for 4-CBA from 3 to 400 mg/kg and for p-TOL from 8 to 400 mg/kg, respectively.

Product Details

Published:
10/01/2020
Number of Pages:
8
File Size:
1 file , 170 KB
Redline File Size:
2 files , 370 KB