English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Two kinds of sampling tubes have been developed for the analysis of acrolein in ambient air, which were filled with 200mg silica gel sorbent coated with either pentafluorophenyl hydrazin (PFPH) or 2,4-dinitrophenyl hydrazine(DNPH). GC/EDC and HPLC/UV are employed to evaluate the performance of PFPH-coated and DNPH-coated tubes, respectively. The PFPH or DNPH coating amount of each tube, the sampling flow rate and the storage time were optimized to conduct a comparative study about the extraction efficiency(96% for PFPH, 92% for DNPH) , collection efficiency(98% for PFPH, 99% for DNPH),storage capacity(5d for PFPH, less than 5h for DNPH) of both.

Comparative Study of Solid Phase Adsorption Sampling Tubes for the Analysis of Acrolein in Ambient Air