Spectrophotometric pH measurements of surface seawater at in-situ conditions: Absorbance and protonation behavior of thymol blue

Marine Chemistry

Volumn 52, Issue 1, 1996, Pages 17-25

  Zhang, Huining ^a   Byrne, Robert H ^a  

^a UNIVERSITY OF SOUTH FLORIDA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

IN-SITU CONDITIONS; PH; SPECTROCHEMICAL ANALYSIS; THYMOL BLUE;

EID: 0030049708     PISSN: 03044203     EISSN: None     Source Type: Journal    
DOI: 10.1016/0304-4203(95)00076-3     Document Type: Article

References (13)

1. Breland, J.A., 1992. Spectrophotometric determination of the pH and the total alkalinity of seawater utilizing sulfonephthalein indicators. Ph.D. Dissertation. Univ. South Florida, St. Petersburg, FL.
2. Breland, J.A. and Byrne, R.H., 1993. Spectrophotometric determination of the total alkalinity of sea water using bromocresol green. Deep-Sea Res., 40: 629-641.
3. Byrne, R.H., 1987. Standardization of standard buffers by visible spectrometry. Anal. Chem., 59: 1479-1481.
4. Byrne, R.H. and Breland, J.A., 1989. High precision multiwavelength pH determinations in seawater using cresol red. Deep-Sea Res., 36: 803-810.
5. Clayton, T.D. and Byrne, R.H., 1993. Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results. Deep-Sea Res., 40: 2115-2129.
6. 2- system characterizations: Precision and thermodynamic consistency. Deep-Sea Res., 42: 411-429.
7. - in synthetic seawater from 273.15 to 318. 15K. J. Chem. Thermodyn., 22: 113-127.
8. Dickson, A.G., 1993. pH buffers for sea water media based on the total hydrogen ion concentration scale. Deep-Sea Res., 40: 107-118.
9. King, D.W. and Kester, D.R., 1989. Determination of sea water pH from 1.5 to 8.5 using calorimetric indicators. Mar. Chem., 26: 5-20.
10. CO2 measurements in seawater. Mar. Chem., 42: 189-198.
11. 2 measurements in the Equatorial Pacific. Mar. Chem., 44: 269-280.
12. Millero, F.J., Zhang, J.-Z., Sotolongo, S., Roy, R.N., Lee, K. and Mane, S., 1993b. The use of buffers to measure the pH of seawater. Mar. Chem., 44: 143-152.
13. Robert-Baldo, G., Morris, M.J. and Byrne, R.H., 1985. Spectrophotometric determination of seawater pH using phenol red. Anal. Chem., 57: 2564-2567.