IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [296623]
A comparison between field and laboratory pH measurements for seawater on the East China Sea shelf
Chou, W.-C.; Gong, G.-C.; Yang, C.-Y.; Chuang, K.-Y. (2016). A comparison between field and laboratory pH measurements for seawater on the East China Sea shelf. Limnol. Oceanogr., Methods 14(5): 315-322. https://hdl.handle.net/10.1002/lom3.10091
In: Limnology and Oceanography: Methods. American Society of Limnology and Oceanography: Waco, Tex.. ISSN 1541-5856; e-ISSN 1541-5856, more
Peer reviewed article  

Available in  Authors 

Authors  Top 
  • Chou, W.-C.
  • Gong, G.-C.
  • Yang, C.-Y.
  • Chuang, K.-Y.

Abstract
    To evaluate the effect of sample storage on pH analysis, a comparison experiment between field and laboratory pH measurements was conducted on a total of 88 seawater samples collected on the East China Sea shelf during 16 July 2014–29 July 2014. The results show that although pH directly measured onboard was statistically higher than the pH later measured onshore with an average residual of 0.0052 ± 0.0057, after correcting for the perturbation caused by the addition of the HgCl2 solution, the observed difference was within the uncertainty in pH measurement. Therefore, our result suggests that, similar to total alkalinity and dissolved inorganic carbon determinations, seawater samples can be stored for pH analysis with a precision that is comparable to the uncertainty of onboard measurement for a period of at least 20 d.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors