Accurate pH measurement and determination in deep-sea environments by an in-situ pH sensor calibration device

Chunyang Tan; Kang Ding; Wencai Yang; William E. Seyfried

doi:10.1109/OCEANSAP.2016.7485352

Accurate pH measurement and determination in deep-sea environments by an in-situ pH sensor calibration device

Chunyang Tan, Kang Ding, Wencai Yang, William E. Seyfried

Earth and Environmental Sciences-Twin Cities

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

An in-situ calibration method to accurately and precisely constrain the pH of deep sea environments is reported. This method involves the pre-evaluation of the Ir-IrOx|Ag-AgCl electrode in the laboratory, followed by the in situ calibration using pH buffers at the ocean bottom. The standard potential E° and in situ slope are derived by the calibration process. This calibration method was implemented in an in situ calibration device (pH Calibrator) and used in the seawater column and hydrothermal diffuse flow measurements. The precision, accuracy and stability of the pH value determined are sufficient for many geochemical processes.

Original language	English (US)
Title of host publication	OCEANS 2016 - Shanghai
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467397247
DOIs	https://doi.org/10.1109/OCEANSAP.2016.7485352
State	Published - Jun 3 2016
Event	OCEANS 2016 - Shanghai - Shanghai, China Duration: Apr 10 2016 → Apr 13 2016

Publication series

Name	OCEANS 2016 - Shanghai

Other

Other	OCEANS 2016 - Shanghai
Country/Territory	China
City	Shanghai
Period	4/10/16 → 4/13/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

calibration
deep sea
hydrothermal
in situ
pH

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title = "Accurate pH measurement and determination in deep-sea environments by an in-situ pH sensor calibration device",

abstract = "An in-situ calibration method to accurately and precisely constrain the pH of deep sea environments is reported. This method involves the pre-evaluation of the Ir-IrOx|Ag-AgCl electrode in the laboratory, followed by the in situ calibration using pH buffers at the ocean bottom. The standard potential E° and in situ slope are derived by the calibration process. This calibration method was implemented in an in situ calibration device (pH Calibrator) and used in the seawater column and hydrothermal diffuse flow measurements. The precision, accuracy and stability of the pH value determined are sufficient for many geochemical processes.",

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author = "Chunyang Tan and Kang Ding and Wencai Yang and Seyfried, {William E.}",

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doi = "10.1109/OCEANSAP.2016.7485352",

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AU - Tan, Chunyang

AU - Ding, Kang

AU - Yang, Wencai

AU - Seyfried, William E.

PY - 2016/6/3

Y1 - 2016/6/3

N2 - An in-situ calibration method to accurately and precisely constrain the pH of deep sea environments is reported. This method involves the pre-evaluation of the Ir-IrOx|Ag-AgCl electrode in the laboratory, followed by the in situ calibration using pH buffers at the ocean bottom. The standard potential E° and in situ slope are derived by the calibration process. This calibration method was implemented in an in situ calibration device (pH Calibrator) and used in the seawater column and hydrothermal diffuse flow measurements. The precision, accuracy and stability of the pH value determined are sufficient for many geochemical processes.

AB - An in-situ calibration method to accurately and precisely constrain the pH of deep sea environments is reported. This method involves the pre-evaluation of the Ir-IrOx|Ag-AgCl electrode in the laboratory, followed by the in situ calibration using pH buffers at the ocean bottom. The standard potential E° and in situ slope are derived by the calibration process. This calibration method was implemented in an in situ calibration device (pH Calibrator) and used in the seawater column and hydrothermal diffuse flow measurements. The precision, accuracy and stability of the pH value determined are sufficient for many geochemical processes.

KW - calibration

KW - deep sea

KW - hydrothermal

KW - in situ

KW - pH

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DO - 10.1109/OCEANSAP.2016.7485352

M3 - Conference contribution

AN - SCOPUS:84978284994

T3 - OCEANS 2016 - Shanghai

BT - OCEANS 2016 - Shanghai

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - OCEANS 2016 - Shanghai

Y2 - 10 April 2016 through 13 April 2016

ER -

Accurate pH measurement and determination in deep-sea environments by an in-situ pH sensor calibration device

Abstract

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