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Determination of morpholine in air by derivatisation with 1-naphthylisothiocyanate and HPLC analysis
National Institute for Working Life, Umeå.
National Institute for Working Life, Umeå.
National Institute for Working Life, Umeå.
2001 (English)In: The Analyst, ISSN 0003-2654, E-ISSN 1364-5528, Vol. 126, no 2, 152-154 p.Article in journal (Refereed) Published
Abstract [en]

A method for the determination of morpholine in air was developed. Samples were collected with adsorbent tubes containing XAD-2 resin coated with 1-naphthylisothiocyanate (NIT). The thiourea derivative formed was subsequently desorbed with acetonitrile and analysed by HPLC with UV detection. The recovery after gas phase spiking with morpholine (2.2-1570 micrograms) was 91% (86-100%) with a relative standard deviation of 5.5%. No effect on recovery from relative humidity or amount of morpholine was seen. The lowest level tested corresponded to 7 mg m-3 (1/10 threshold limit value) for a 15 min sampling period with a sampling rate of 20 ml min-1. Exposed NIT-coated XAD-2 tubes were stable at room temperature for at least 2 weeks.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2001. Vol. 126, no 2, 152-154 p.
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-83473DOI: 10.1039/b008307kISI: 000166816300006PubMedID: 11235095OAI: oai:DiVA.org:umu-83473DiVA: diva2:667429
Available from: 2013-11-26 Created: 2013-11-26 Last updated: 2017-12-06Bibliographically approved

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