High-speed Simultaneous Analysis of Passivators and Furanic　Compounds in Insulating Liquid

User Benefits

- Time and labor for switching of analyses can be greatly reduced by unifying two analytical methods into one approach. - Labor and consumable cost for pretreatment can be greatly reduced because the pretreatment of the passivators and furanic compounds can be conducted at the same time.

Introduction

Application News No. L576 introduced the simultaneous analysis of passivators and furanic compounds in an insulating liquid. Benzotriazole (BTA) and tolutriazole derivatives (TTAA) are added into insulating liquids as a passivator, the analytical method of which is specified by British Standards (BS 148:2009). Furanic compounds are used as an indicator of degradation in electrical equipment, the analytical method of which is specified by ASTM D5837-15. In general, although such analyses are conducted individually, the analytical method introduced in Application News No. L576 enables the simultaneous analysis of these compounds. Because this analytical method was designed for a conventional HPLC system, 30 min is required for one analysis. This article introduces a faster method using an ultra high performance liquid chromatograph Nexera X3.

January 6, 2022 GMT