T/CPCIF 0232-2022 Determination of the content of titanium, magnesium, aluminum, calcium, iron, zinc, and sodium in polybutylene resin by inductively coupled plasma atomic emission spectroscopy

Scope

Scope: This document describes the test method for determining the content of titanium, magnesium, aluminum, calcium, iron, zinc, and sodium in polybutylene resin using inductively coupled plasma emission spectrometry. This document is applicable to the determination of titanium (0.20 mg/kg to 400.00 mg/kg), magnesium (0.20 mg/kg to 180.00 mg/kg), aluminum (0.20 mg/kg to 520.00 mg/kg), calcium (0.20 mg/kg to 200.00 mg/kg), iron (0.20 mg/kg to 180.00 mg/kg), zinc (0.20 mg/kg to 180.00 mg/kg), and sodium (0.20 mg/kg to 250.00 mg/kg) in polybutylene resin. Note: Samples with element concentrations exceeding the specified range can also be measured using this document, but their precision has not been verified. Main technical content: 1. Method overview: Carbonize the sample to remove organic matter, ash the sample to remove carbon residue, then dissolve the ash in hydrochloric acid to prepare a water-soluble test sample, and directly measure it using an inductively coupled plasma emission spectrometer.

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