Observations on skin resistance to electricity and sweat chloride content

1962 ◽  
Vol 60 (5) ◽  
pp. 716-720 ◽  
Author(s):  
Randolph Batson ◽  
William C. Young ◽  
Frank M. Shepard
Keyword(s):  
Skin Resistance ◽  
Chloride Content ◽  
Sweat Chloride

Anion-exchange chromatography to determine the concentration of chloride in sweat for diagnosis of cystic fibrosis.

1985 ◽  
Vol 31 (10) ◽  
pp. 1715-1716 ◽  
Author(s):  
M E Miller ◽  
J M Cosgriff ◽  
R H Schwartz
Keyword(s):  
Cystic Fibrosis ◽  
Anion Exchange ◽  
Chloride Content ◽  
Anion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Collection System ◽  
Chromatographic System ◽  
Ultraviolet Detection ◽  
Sweat Chloride ◽  
Sweat Collection

Abstract For the diagnosis of cystic fibrosis, we use the "Macroduct Sweat Collection System" (Wescor) to sample sweat, and anion-exchange chromatography to determine its chloride content. The chromatographic system consists of a Whatman Partisil SAX 10-microns column, an isocratic phosphate-buffered mobile phase, and ultraviolet detection at 200 nm. The sweat chloride concentrations of 10 individuals with cystic fibrosis ranged from 101 to 131 mmol/L (mean 111, SD 9 mmol/L). For 11 controls the values ranged from 13 to 54 mmol/L (mean 28, SD 11 mmol/L). We conclude that the procedure is reliable for the diagnosis of cystic fibrosis.

Pilot-scale combustion studies with kraft lignin in a powder burner and a CFB boiler

TAPPI Journal ◽  
2010 ◽  
Vol 9 (6) ◽  
pp. 24-30 ◽  
Author(s):  
NIKLAS BERGLIN ◽  
PER TOMANI ◽  
HASSAN SALMAN ◽  
SOLVIE HERSTAD SVÄRD ◽  
LARS-ERIK ÅMAND
Keyword(s):  
Circulating Fluidized Bed ◽  
Black Liquor ◽  
Chloride Content ◽  
Pilot Scale ◽  
High Energy ◽  
Kraft Lignin ◽  
High Energy Density ◽  
Alkali Chloride ◽  
Cfb Boiler ◽  
Solid Biofuel

Processes have been developed to produce a solid biofuel with high energy density and low ash content from kraft lignin precipitated from black liquor. Pilot-scale tests of the lignin biofuel were carried out with a 150 kW powder burner and a 12 MW circulating fluidized bed (CFB) boiler. Lignin powder could be fired in a powder burner with good combustion performance after some trimming of the air flows to reduce swirl. Lignin dried to 10% moisture content was easy to feed smoothly and had less bridging tendencies in the feeding system than did wood/bark powder. In the CFB boiler, lignin was easily handled and cofired together with bark. Although the filter cake was broken into smaller pieces and fines, the combustion was not disturbed. When cofiring lignin with bark, the sulfur emission increased compared with bark firing only, but most of the sulfur was captured by calcium in the bark ash. Conventional sulfur capture also occurred with addition of limestone to the bed. The sulfur content in the lignin had a significantly positive effect on reducing the alkali chloride content in the deposits, thus reducing the high temperature corrosion risk.

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

VALLOUREC VM 125 13Cr SS

Alloy Digest ◽  
2016 ◽  
Vol 65 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Martensitic Steel ◽  
Chloride Content ◽  
Sour Service

Abstract Vallourec VM 125 13Cr SS is a 13Cr super martensitic steel for use in oil country tubular goods as a material suitable for sour service. The CY version offers corrosion and SCC resistance on a greater usage domain than API L80-13Cr in terms of temperature and chloride content. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming. Filing Code: SS-1254. Producer or source: Vallourec USA Corporation.

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