نتایج جستجو برای: thiocyanates
تعداد نتایج: 807 فیلتر نتایج به سال:
An earlier report (5) has described the effect of thiocyanate sprays on sugars and certain other constituents in apples. The present paper is a continuation of the general problem with attention directed to the pectic constituents. In previous work it was noted occasionally that apples spray.ed with thiocyanates were found to keep better in cold storage at 30 to 50 C. than control samples not s...
In the title salt, [Cu(NCS)(C(6)H(6)N(4))(2)]Cl, the Cu(II) atom adopts a five-coordinated square-pyramidal geometry consisting of an N atom from a thio-cyanate anion and four N atoms from two chealting biimidazole ligands. The thio-cyanate ligand occupies the axial position and is, like the Cu(II) centre, located on a mirror plane. The cation and anion are linked into a linear chain by N-H⋯S a...
A study of the inhibition of the growth of Streptococcus cremoris 972 by the enzyme lactoperoxidase has shown, in agreement with previous investigations, that the inhibition requires a source of both peroxide and thiocyanate. The thiocyanate may play more than one role. It stabilizes the very dilute solutions of lactoperoxidase employed in these studies, and its oxidation products may be involv...
Data on thiocyanate and vitamin B(12) concentrations in plasma from Tanzanian patients with ataxic tropical neuropathy are presented and support the hypothesis that, as in Nigeria, the condition may result from chronic exposure to cyanide or cyanogens from a diet including large amounts of cassava.
ATCA (2-amino-2-thiazoline-4-carboxylic acid) is a promising marker to assess cyanide exposure because of several advantages of ATCA analysis over direct determination of cyanide and alternative cyanide biomarkers (i.e. stability in biological matrices, consistent recovery, and relatively small endogenous concentrations). Concentrations of ATCA in the plasma of smoking and non-smoking human vol...
BACKGROUND Despite long standing iodine supplementation in Iran the prevalence of goiter remains high in some areas. In the present study we investigated the possible role of thiocyanate as a goitrogen in the etiology of goiter in Isfahan, Iran. METHODS A total of 2331 (6-13 year old) school children were selected by multistage random sampling. Thyroid size was estimated in each child by insp...
Burgeoning evidence of the formidable mortality consequences of cigarette smoking has motivated life insurers to offer lower premiums to non-smokers. With widely-advertised nonsmoker discounts also available on propertycasualty and health insurance products, the alert consumer is now aware of the economic advantage of being a non-user of cigarettes, even if only temporarily (i.e., when the agen...
Many women of reproductive age in the United States are marginally iodine deficient, perhaps because the salt in processed foods is not iodized. Iodine deficiency, per se, can interfere with normal brain development in their offspring; in addition, it increases vulnerability to the effects of certain environmental pollutants, such as nitrate, thiocyanate, and perchlorate. Although pregnant and ...
In the centrosymmetric binuclear title compound, [Pb(2)(N(3))(2)(NCS)(2)(C(12)H(8)N(2))(4)], the N-donor atoms of one N-heterocycle and the N-donor atom of a thio-cyanate anion along with the sterically active lone-pair electrons comprise an approximate square; a plane through three atoms of this square is twisted slightly with respect to the square made up of the other four atoms (two from the...
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