Determination of halogens and sulfur in high-purity polyimide by IC after digestion by MIC

Determination of halogens and sulfur in high-purity polyimide by IC after digestion by MIC

In this work, a method for sample preparation of high-purity polyimide was proposed for halogens and sulfur determination by ion chromatography (IC) with conductivity detection and, alternatively, by inductively coupled plasma mass spectrometry (ICP-MS). A relatively high polyimide mass (600mg) was...

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Veröffentlicht in:Talanta (Oxford) 2016-09, Vol.158, p.193-197
Hauptverfasser: Krzyzaniak, Sindy R., Santos, Rafael F., Dalla Nora, Flavia M., Cruz, Sandra M., Flores, Erico M.M., Mello, Paola A.
Format: Artikel
Sprache:eng
Schlagworte:
Combustion
Confidence intervals
Decomposition
Halogens
ICP-MS
Microwave-induced combustion
Polyimide
Polyimide resins
Recovery
Sample preparation
Spikes
Sulfur
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Zusammenfassung:In this work, a method for sample preparation of high-purity polyimide was proposed for halogens and sulfur determination by ion chromatography (IC) with conductivity detection and, alternatively, by inductively coupled plasma mass spectrometry (ICP-MS). A relatively high polyimide mass (600mg) was completely digested by microwave-induced combustion (MIC) using 20bar of O2 and 50mmolL−1 NH4OH as absorbing solution. These conditions allowed final solutions with low carbon content (
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2016.05.032