Detection of Methyl Salicylate in a Rubber Sample by TGA-MS

Introduction

TGA-MS can be used to quantify small amounts of additives in a material. The limits of detection (LOD) can also be determined using calibration curves established from the mass spectra of known substances obtained in the MID mode. This is demonstrated using the example of rubber spiked with low concentrations of methyl salicylate. The calibration curves obtained from the mass spectra were used to estimate the LOD, as well as to quantify the percentage of methyl salicylate in the rubber material.

Sample:     Butyl rubber (BR; 130 mg) spiked with 0.5, 1, 5 µL methyl salicylate (methyl o-hydroxybenzoate)

Conditions

Measuring cell:     TGA-MS

^{Detection of Methyl Salicylate in a Rubber Sample by TGA-MS | Thermal Analysis Handbook No.HB610 | Application published in METTLER TOLEDO TA Application Handbook Evolved Gas Analysis}