Triethylenetetramine. Determination in workplace air
Journal Title: Podstawy i Metody Oceny Środowiska Pracy - Year 2016, Vol 32, Issue 1
Abstract
Triethylenetetramine (TETA) is a yellowish, slightly oily liquid very soluble in water.Triethylenetetramine is frequently used as a curing agents for epoxy resins, intermediary forauxiliary agents used in the paper industry, the textile industry and in glues or intermediate forasphalt emulsifi ers.The aim of this study was to develop and validate a sensitive method for determining concentrationsof TETA in workplace air in the range from 1/10 to 2 MAC values, in accordance with the requirements of Standard No. PN-EN 482.The method was based on passing the air which contains TETA through impringer fi lled withhydrochloric acid solution. TETA was determined indirectly by determining the product of itsreaction with 1-naphtyhyl isothiocyanate (NIT). Studies were performed using high-performanceliquid chromatography (HPLC) technique. An Agilent Technologies (Germany) chromatograph,series 1200, with a diode-array detector (DAD) was used in the experiment. An Ultra C18 column(250 × 4.6 mm, dp = 5 mm), with a precolumn (10 × 4.0 mm) was applied.The method is linear (r = 0.999) within the working range 0.6–12 μg/ml, which is equivalentto air concentrations from 0.1 to 2.0 mg/m[sup]3[/sup] for a 60-L air sample.The analytical method described in this paper makes it possible to selectively determine TETAin workplace air in the presence of other amines. The method is precise, accurate and it meets thecriteria for procedures for measuring chemical agents listed in Standard No. PN-EN 482. Thismethod can be used for assessing occupational exposure to TETA and associated risk to workers’health. The developed method of determining TETA has been recorded as an analytical procedure (see appendix).
Authors and Affiliations
Joanna Kowalska
Keywords
Related Articles
- EP ID EP81621
- DOI -
- Views 102
- Downloads 0
Wood dust – aspiration fraction Documentation of proposed values of occupational exposure limits (OELs)
Wood is the raw material of the wood industry, which is used in the form of solid wood or in the processed form. Occupational exposure to wood dusts occur during processing and woodworking. The highest levels of wood dus...
2-Nitroanisole. Documentation of occupational exposure limits (OELs)
2-Nitroanisole is a colorless to yellowish liquid poorly soluble in water. It is used primarily to o-anisidine and o-dianisidine synthesis, which are precursors of azo dyes. 2-Nitroanisole has harmonized classification i...
Hexachlorobenzene – inhalable fraction. Documentation of proposed values of occupational exposure limits (OELs)
Hexachlorobenzene is a solid substance, insoluble in water, highly lipophilic with high melting and boiling point and high vapor density. The compound was used in war, electrotechnical, and chemical industries. Nowadays...
Trinitrate(V)-propane-1,2,3-triyl. Documentation
At room temperature trinitrate(V)-propan-1,2,3 --triyl (nitroglycerin, TNG) is an oily, colorless to pale yellow liquid with sweet, burning taste. It is classified as a highly toxic explosive substance. It shows very tox...
Strategia grupowania nanomateriałów
Wprowadzanie na rynek produktów nanotechnologii wymaga określenia zagrożeń, jakie mogą one stwarzać dla zdrowia człowieka oraz środowiska. Podmioty rejestrujące mogą prowadzić, zgodnie z kryteriami rozporządzenia REACH (...