Add to ORKGFundamental studies of this subject were carried out in the following method. A new reagent "Nen-Thorin" (2-(1, 8-dihydroxy-3, 6-disulfo-2-naphthylazo)-benzene arsonic acid) (max. absorption, 500 mμ in an aq. solution of pH 2.3) was synthesised and complex of this reagent with thorium (max. absorption, 570 mμ at pH 2.3) was studied for the determination of F (<50 γ in 50 ml). The extinctions of both Neo-Thorin and its complex with Th are sensitive towards change in pH, but remain constant between pH 2.1 and 2.4, the extinction of the complex decreasing in proportion to the amount of F(-). Common ions, including Cl(-), SO(4)(2-), PO(4)(3-), Al(3+), Fe(3+), Ca(2+), and Mg(2+), interefere. Any F in the sample is distilled from an H(2)SO(4) sol...
It was found that the synthetic fluorapatite (Ca(Sr)10(PO4)6F2), which did not dissolve at the mixtu...
Cover title."Reprinted from Analytical chemistry, vol. 23, no. 4, pp. 659-661, April, 1951.
Bibliography: pages 66-67.An attempt has been made in Part I of this paper to present a comprehensi...
Fundamental studies of this subject were carried out in the following method. A new reagent "Nen-Tho...
Rabbits were used as experimental animals. It was investigated how much fluorine was accumulated in ...
Methods are described for assaying the fluoride content of ashed samples of plant and animal tissues...
Nowadays growing attention is paid to the control of fluorine content in samples of biological origi...
The effects of excessive amounts of fluorine on the animal organism have attracted the attention of ...
During the past quarter of a century there has been considerable investigation into the effects of f...
Free fluoride ions are effective in combating caries in children, and their supplementation in milk ...
Fluorine was determined in the iliac crest bones of patients and in ribs collected from post-mortem ...
A method for the determination of certain constituents in fluorspar has been studied. Fluorspar can ...
THE ingestion of small quantities of fluorides with the diet causes an ac-cumulation of fluorine in ...
Abstract niet beschikbaarThis report describes the results of a comparison of two analytical procedu...
The fluorine concentration of chemically enriched hydroxylapatite (Ca10(PO4)6(OH)2) was measured by ...
It was found that the synthetic fluorapatite (Ca(Sr)10(PO4)6F2), which did not dissolve at the mixtu...
Cover title."Reprinted from Analytical chemistry, vol. 23, no. 4, pp. 659-661, April, 1951.
Bibliography: pages 66-67.An attempt has been made in Part I of this paper to present a comprehensi...
Fundamental studies of this subject were carried out in the following method. A new reagent "Nen-Tho...
Rabbits were used as experimental animals. It was investigated how much fluorine was accumulated in ...
Methods are described for assaying the fluoride content of ashed samples of plant and animal tissues...
Nowadays growing attention is paid to the control of fluorine content in samples of biological origi...
The effects of excessive amounts of fluorine on the animal organism have attracted the attention of ...
During the past quarter of a century there has been considerable investigation into the effects of f...
Free fluoride ions are effective in combating caries in children, and their supplementation in milk ...
Fluorine was determined in the iliac crest bones of patients and in ribs collected from post-mortem ...
A method for the determination of certain constituents in fluorspar has been studied. Fluorspar can ...
THE ingestion of small quantities of fluorides with the diet causes an ac-cumulation of fluorine in ...
Abstract niet beschikbaarThis report describes the results of a comparison of two analytical procedu...
The fluorine concentration of chemically enriched hydroxylapatite (Ca10(PO4)6(OH)2) was measured by ...
It was found that the synthetic fluorapatite (Ca(Sr)10(PO4)6F2), which did not dissolve at the mixtu...
Cover title."Reprinted from Analytical chemistry, vol. 23, no. 4, pp. 659-661, April, 1951.
Bibliography: pages 66-67.An attempt has been made in Part I of this paper to present a comprehensi...