Automatic determination of iodine species in natural waters by a new flow-through electrode system

1985 ◽  
Vol 57 (6) ◽  
pp. 1157-1160 ◽  
Author(s):  
Eiichiro. Nakayama ◽  
Takashi. Kimoto ◽  
Satoshi. Okazaki
Keyword(s):  
Natural Waters ◽  
Electrode System ◽  
Automatic Determination ◽  
Iodine Species ◽  
Flow Through

Determination of ionized calcium in serum that has been exposed to air.

1976 ◽  
Vol 22 (7) ◽  
pp. 1009-1011 ◽  
Author(s):  
D R Wybenga ◽  
F A Ibbott ◽  
D C Cannon
Keyword(s):  
Total Protein ◽  
Protein Concentration ◽  
Calcium Concentration ◽  
Electrode System ◽  
Ionized Calcium ◽  
Ph Change ◽  
Air Samples ◽  
Ph Values ◽  
Flow Through

Abstract We examined changes in ionized calcium concentration in serum after its exposure to air. Samples with total protein concentrations ranging from 50 to 90 g/liter were equilibrated with CO2 in nitrogen (5/95, by vol) or CO2 alone, to produce pH values of 7.0 to 8.0. Ionized calcium was then measured with an Orion flow-through electrode system. Curves relating pH and ionized calcium concentration had statistically identical slopes regardless of protein concentration. A factor was derived, based on pH change, for correcting values for ionized calcium in serum exposed to air, and its validity was confirmed by comparing corrected values for samples allowed to stand at ambient temperature (23 degrees C) without anaerobic precautions with values initially obtained on anaerobic aliquots of the same samples.

Automatic determination of ethylene glycol in anti-freeze solutions with a periodate-sensitive flow-through electrode

The Analyst ◽  
1980 ◽  
Vol 105 (1257) ◽  
pp. 1203 ◽  
Author(s):  
E. P. Diamandis ◽  
C. E. Efstathiou ◽  
T. P. Hadjiioannou
Keyword(s):  
Ethylene Glycol ◽  
Automatic Determination ◽  
Flow Through

Semi-automatic determination of manganese in natural waters and plant digests by flow injection analysis

The Analyst ◽  
1979 ◽  
Vol 104 (1237) ◽  
pp. 371 ◽  
Author(s):  
M. F. Giné ◽  
E. A. G. Zagatto ◽  
H. Bergamin Filho
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Natural Waters ◽  
Automatic Determination

An Immunosensor for the Automatic Determination of the Antifouling Agent Irgarol 1051 in Natural Waters

1998 ◽  
Vol 32 (21) ◽  
pp. 3442-3447 ◽  
Author(s):  
Miguel Angel González-MartÍnez ◽  
José Penalva ◽  
Rosa Puchades ◽  
Angel Maquieira ◽  
Berta Ballesteros ◽  
...  
Keyword(s):  
Natural Waters ◽  
Automatic Determination ◽  
Irgarol 1051 ◽  
Antifouling Agent
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