気象庁気象研究所｜気象研究所技術報告第57号

閉流路中のフローセルを用いた分光光度法自動分析装置による海水の高精度pH_T測定

斉藤秀、石井雅男、緑川貴、井上（吉川）久幸

December 2008

DOI : 10.11483/mritechrepo.57

	序文	PDF[295KB]
	概要
	Contents

1	Introduction	PDF[286KB]
2	Methods and materials	PDF[493KB]
2.1	Principles
2.2	Apparatus
2.3	Preparation of dye solution
2.4	Perturbation caused by addition of dye solution
2.5	Correction for temperature deviations
2.6	Seawater samples
2.7	Certified reference materials (CRMs) and working standards
3	Onboard measurements	PDF[381KB]
4	Measurements of bottle samples taken at depth	PDF[499KB]
4.1	Effects of bottling and headspace
4.2	Perturbation of pHT caused by addition of saturated HgCl₂ solution
4.3	Storage of samples
4.4	Uncertainty in pH_T measurements of bottle samples
5	Consistency of measured and calculated pH_T values for CRMs and comparability of pH_T data among several cruises	PDF[342KB]
6	Procedure to measure pH_TT with high comparability and precision	PDF[342KB]
7	Discussion	PDF[400KB]
7.1	Standard deviation of pH_TT in reference materials
7.2	Origin of the pH_TT perturbation caused by the addition of HgCl₂
7.3	Internal consistency of CO₂ system parameters
8	Summary
	Acknowledgements	PDF[388KB]
	References	PDF[388KB]