2008
DOI: 10.1016/j.aca.2008.01.034
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Influences of sampling volume and sample concentration on the analysis of atmospheric carbonyls by 2,4-dinitrophenylhydrazine cartridge

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Cited by 23 publications
(7 citation statements)
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“…2). Aldehyde carbonyls reacted with DNPH amino groups forming the corresponding DNPH derivatives 25,26 . The yellow DNPH derivatives that were formed were concentrated and kept in MeOH prior to MS.
Figure 2Synthesis routes of DNPH derivatives.
…”
Section: Resultsmentioning
confidence: 99%
“…2). Aldehyde carbonyls reacted with DNPH amino groups forming the corresponding DNPH derivatives 25,26 . The yellow DNPH derivatives that were formed were concentrated and kept in MeOH prior to MS.
Figure 2Synthesis routes of DNPH derivatives.
…”
Section: Resultsmentioning
confidence: 99%
“…Both eld observations and laboratory experiments demonstrate CE changes for carbonyls depending on RH, sample ow rates, sample durations, and concentration levels. 36 Commercially available carbonyl samplers with inlets heated to 50 C can remove water droplets (i.e., rainfall) from the air stream, but an elevated RH affects CEs. Table 3 summarizes the interference and solutions related to the DNPH-coated cartridge method.…”
Section: Discussionmentioning
confidence: 99%
“…Potential drawbacks existed in the method for sampling air carbonyls using DNPH-coated silica cartridges, mainly including: (1) ambient O 3 was the critical interference using DNPH-coated solid sorbent cartridges; (2) environmental relative humidity could inhibit derivatization kinetics and contributed to degradation of carbonyl-DNPH derivatives during sampling (Saha et al, 2012;Ho et al, 2013); (3) sampling volume and concentration also influenced the analysis of carbonyls using DNPH cartridges (Pal and Kim, 2008a); (4) unsaturated carbonyls such as acrolein were not accurately quantified using the DNPH method (Ho et al, 2011); and (5) the HPLC method was reliable for low-weight carbonyls, while gas chromatography was more suitable for high-weight carbonyls (Pal and Kim, 2008b;Kim and Pal, 2010;Pang et al, 2011;Xie et al, 2013). However, these potential drawbacks could be minimized though the experiments of quality assurance in the method (Feng et al, 2005;Lü et al, 2010).…”
Section: Samplingmentioning
confidence: 99%