A Colorimetric Determination of Blood Chlorides

Isaacs, M. L.

doi:10.1016/s0021-9258(18)85807-0

Cited by 19 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These determinations were accurate to better than ___2% at a solution concentration above 5 x 10-'M. A colorimetric method of analysis was used for chloride, capable of detecting chloride ion quantitatively at concentrations as low as 2 x 10-~M with an accuracy better than 2% (20). The procedure involves the indirect evaluation of the chloride ion by displacement of the chromate ion from silver chromate solution.…”

Section: Methodsmentioning

confidence: 99%

Diffusion-Exchange of Exchange Ions and Nonexchange Electrolyte in Ion-Exchange Membrane Systems

Peterson¹,

Gregor²

1959

J. Electrochem. Soc.

View full text Add to dashboard Cite

The following parameters of cation-and anion-permeable membrane systems were measured: water content; ohmic resistance; exchange capacity; diffusible electrolyte content; concentration potential; rate of exchange-diffusion of electrolytes; rate of diffusion of nonelectrolytes; effect of rate of stirring on diffusive flux. From these were calculated: the thickness of the unstirred film, which varied from 1 to 30 microns; the diffusion coefficient of the potassium ion in a sulfonic acid cation-permeable membrane, which was found to vary from 1.09 x 10 -7 cm 2 sec -1 to twice that value as the ambient solution concentration was changed from 0.001 to 0.1M; the diffusion coefficient of the chloride ion which remained at about 3 x 10-7; the diffusion coefficients of nonelectrolytes. A theoretical treatment showed that diffusion coefficients and other parameters could be estimated from a consideration of pore diameters, a tortuosity factor, and water contents.Of primary importance in any detailed analysis of free and forced transport of ions across ion-selective membranes is the determination of boundary conditions which define film, membrane or coupled filmmembrane diffusion mechanisms as being rate controlling. The appropriate application of Fick's law to diffusion across a membrane and its bounding unstirred films results in an expression which dictates the rate-controlling mechanism under given experimental conditions. The general theory of diffusive processes in ion-exchange resin systems has been described previously by several authors (1-3)

show abstract

Section: Methodsmentioning

confidence: 99%

Diffusion-Exchange of Exchange Ions and Nonexchange Electrolyte in Ion-Exchange Membrane Systems

Peterson¹,

Gregor²

1959

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…After removal of the immobilizate by centrifugation (9000 g , 20 min, 4 °C), silver(I) chromate (0.03 g) was added to 2 mL of solution. The chloride content was determined in the supernatant according to the method of Isaacs …”

Section: Methodsmentioning

confidence: 99%

Semicontinuous Detection of 1,2-Dichloroethane in Water Samples Using Xanthobacter autotrophicus GJ 10 Encapsulated in Chitosan Beads

et al. 1997

View full text Add to dashboard Cite

A semicontinuous microbial assay for the determination of halogenated short-chain hydrocarbons in water samples was developed. The bacterium Xanthobacter autotrophicus GJ 10 forms dehalogenating enzymes, which liberate the halides in 1,2-dichloroethane as halogen ions. Cells of the organism were immobilized in chitosan beads and placed into a tube reactor, whose outlet was connected to a flow-through cell with chloride-selective potentiometric electrodes. Water samples were delivered continuously to the system, and the EMF was recorded. Both the difference in EMF between blank and sample and the velocity of the EMF change were used for calibration. The detection limit for 1,2-dichloroethane was below 0.5 mg/ L; the relative standard deviation was <10%. The effects of several parameters like flow rate and cell density were studied in detail.

show abstract

“…To extend the sensitivity of polarography, a number of techniques have been employed, including differential pulse (6,7) and square wave polarography (8,9), various alternating current polarography-based techniques (10)(11)(12), and stripping voltammetry (13)(14)(15)(16)(17)(18), but these technqiues have not seen extensive use in studies of metal complexation in dilute natural waters.…”

Section: Literature Citedmentioning

confidence: 99%

“…Many methods exist for the determination of chloride ion in a variety of media. Most are applicable satisfactorily at levels of 10"2-10"3 M. These are well-documented and include titration with silver or mercury salts with visual (6,7) or potentiometric (8) end-point detection. A wide range of methods for the chloride ion in biological fluids has been summarized (9) including electrochemical methods such as polarography, coulometry, and conductimetry.…”

mentioning

confidence: 99%

Cathodic stripping voltammetric determination of organic halides in drug dissolution studies

Davidson¹,

Smyth²

1979

Anal. Chem.

View full text Add to dashboard Cite

A Colorimetric Determination of Blood Chlorides

Cited by 19 publications

References 0 publications

Diffusion-Exchange of Exchange Ions and Nonexchange Electrolyte in Ion-Exchange Membrane Systems

Diffusion-Exchange of Exchange Ions and Nonexchange Electrolyte in Ion-Exchange Membrane Systems

Semicontinuous Detection of 1,2-Dichloroethane in Water Samples Using Xanthobacter autotrophicus GJ 10 Encapsulated in Chitosan Beads

Cathodic stripping voltammetric determination of organic halides in drug dissolution studies

Contact Info

Product

Resources

About