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Questions related from Rick Raaijmakers
Is there a way/procedure to perfrom an esterfication reaction on free sterarate which is present as zinc-stearate in zinc-paste (zinc-stearate plus ESBO) and to quantifiy this newly formed ester...
14 April 2025 1,862 1 View
Please, does somebody know a company or institute which sells reference material (film) which can be used to validate a tensile testing instrument according to ASTM D882?
03 July 2024 1,324 0 View
Does anyone know an analytical method (besides GC-MS-Headspace or GC-IMS) for the detection and identification of highly volatile and organic compounds which emerge from liquid plasticizers like DEHP?
14 November 2022 4,980 0 View
We are extracting PVC compounds using diethylether. We analyse this extract directly on our GC-MS system. After analyzing this extract on our GC-MS, we observe an increasing baseline of the...
11 March 2022 4,562 1 View
Me and my colleagues are looking for a quantative GC-FID/MS method for the determination of erucamide in polyolefin foil. Most of the articles suggest pressurized solvent extraction. We are not...
27 October 2021 4,880 1 View
We are in possession of a GC-MS/FID system and want to quantify Irgafos 168 (plus Irganox 168) in PE foil. At this point we only encountered a method which uses saponification of Irgafos 168 by...
19 May 2021 8,024 3 View
Dear all, At this moment I am using a GC-MS system for DEHP trace measurements. I use an internal standard method to analyse a range of 5 to 40 ppm DEHP in solution (DCM). This range has been...
28 April 2021 3,652 3 View
