Assertion: allyl alcohol | /r/HasProperty | chosen as internal standard
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Source sentences:
text: The results showed that the retention time of n-hexane was 3.46 min and it could be completely separated with impurities of allyl chloride (4.16 min), allyl aldehyde (4.68 min), allyl alcohol (9.93 min), dimethylamine (3.82 min), and allyldimethylamine (3.99 min) and extraction solvent of trichloromethane, and there were no chemical reactions between n-hexane and the analytes, so n-hexane was chosen as the internal standard.