Journal of Occupational Health
Online ISSN : 1348-9585
Print ISSN : 1341-9145
ISSN-L : 1341-9145
Brief Reports
Screening check test to confirm the relative reactivity and applicability of 2,4-dinitrophenylhydrazine impregnated-filters for formaldehyde on other compounds
Naoko Inoue Mitsutoshi Takaya
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ジャーナル オープンアクセス

2022 年 64 巻 1 号 論文ID: e12333

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Objectives: A simple check test method was designed to confirm whether a 2,4-dinitrophenylhydrazine (DNPH) filter for formaldehyde can be used to measure other compounds.

Methods: Sample mixtures containing the same concentrations of formaldehyde, acetaldehyde, and acetone were spiked to the DNPH-filter, extracted, and then measured using high performance liquid chromatography with photodiode array detector (HPLC-PDA). The amounts of DNPH-derivatives versus the amounts of spiked samples were then plotted.

Results: When the amount of DNPH << the total amount of spiked samples, the amount of DNPH-derivatives was formaldehyde > acetaldehyde >> acetone. This order corresponded to the relative rate constants for the reaction. Therefore, this study confirmed that acetone was not collected at the formaldehyde sampling rate.

Conclusions: This check test easily measured the reaction rate order and can be used as a simple test to determine whether other samples can be measured by the analytical methods used for the specified sample.

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© 2022 The Authors. Journal of Occupational Health published by John Wiley & Sons Australia, Ltd on behalf of The Japan Society for Occupational Health

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