Poisons specific

Ratten-gift, n. rat poison, specif, white arsenic, -pulver, n. rat powder, rat poison, -schwanz, m. rat-tail file, -tod, m. rat poison, -ver-tilgungsmittel, n. rat killer, vermicide. Ratter, m. grating, grate, screen, riddle, rauben, v.t. rob. 

The hydrogenolysis of EtaSiH over silica-supported Pd and Pt catalysts resulted in significant poisoning, specifically, the loss of activity in the hydrogenation of cyclohexene.375 Oxidation, however, fully restored the activity of catalysts with small metal particles (>50% dispersion) as a result of surface reconstruction. 

Coordination chemistry can find a use in medicine in a number of ways. Coordination compounds can be used in the treatment, management or diagnosis of disease, or coordination complexes can be formed in the body to handle dysfunction due to metal poisoning. Specifically one can define four principal areas of the use of transition metal compounds in medicine. These are ... 

Poisoning. Specific components present in the reactant feed can adsorb selectively onto active catalytic sites rendering them inactive, in much the same way as CO can react with Fe-hemoglobin in the blood. For heterogeneous catalysts sulfur compounds are the most universal poisons for both base metal catalysts and to a lesser extent precious metals. Sulfur compounds present in petroleum, chemical, and environmental streams adsorb on the surface of Ni, Cu, Co, etc. forming metal sulfides that have little or no activity. In general poisoning by sulfur compounds is irreversible. For this reason upstream processes are used to reduce the sulfur to acceptable levels. 

Deliberate and accidental self poisoning Principles of treatment Poison-specific measures General measures... 

A standard approach is recommended for all poisoned patients and should include triage and general supportive care. Initial assessment should include evaluation and stabilization of the airway, breathing, and circulatory function. Core temperature should be assessed and hypothermia or hyperthermia appropriately corrected. Hypoglycemia should also be addressed if present. A complete physical and neurological examination should follow. Poison-specific antidotes should be administered if available [8]. 

The Poisons Act of 1919 consolidates the laws regulating importation, possession and sale of poisons. Specific permits are needed and substances are classified as poisons as per scheduled list. 

Several toxic metals, including arsenic, iron, lead, and mercury, are discussed in Chapters 30 and 35. Their measurement in urine, blood, and hair (in some cases) is valuable to help diagnose acute or chronic metal poisoning. Specific therapy for these toxins is listed in Table 34-1. Because the assessment of acute iron overdose requires emergency laboratory support, it is discussed in this chapter. 

Four epidemiological studies examined the effect of Hg exposure on cancer incidence or cancer death rate. Those studies are summarized in Table 5-1. Tamashiro et al. (1984) carried out a cohort study that evaluated the causes of death of 334 individuals who had survived Minamata disease (MD) and died between 1970 and 1980. Control cases were selected from deaths that occurred in the same city or town as the MD cases and were matched for sex, age and year of death. No significant difference in cancer death rates was observed between the subjects and the controls, suggesting that the risk of dying from cancer was not correlated with patient history of MeHg poisoning. Specific types of cancer, however, were not evaluated. 

It is emphasized in John Heinerman s The Treatment of Cancer with Herbs (1984) that although laetrile is sometimes viewed favorably as a cancer treatment, due to enzymatic action it can interact with some other foods to produce HCN internally and cause cyanide poisoning. Specifically forbidden is using laetrile tablets with such health foods as nuts, bean and alfalfa sprouts, fresh fruits (peaches), and other uncooked foods found in salads (lettuce, celery, mushrooms), which are high in hydrolytic enzymes that can cause the release of cyanide (Heinerman, 1984, pp. 175,176). Never mix these foods with laetrile ... 

Comparable orders of ease of combustion may be obtained for other catalysts used in VOC abatement, activities vary according to the stability of the class of compound and the ability of the compound and/or its oxidised products to act as catalyst poisons. Specific compounds within these general classes may have higher or lower destruction efficiencies depending on their exact nature and on the composition of the catalyst used for the combustion. 

Finkel.slein. Y Taitelman, U., and Biegon, A. (1988). CN.S involvement in acute organophosphate poisoning . Specific pattern of toxicity, clinical correlates and antidotal treatment, ital. J. Neurol.. Sci. 9,437-446. 

The ionic liquid may interact with the solid catalytic sites and thereby modify its adsorption and reaction properties [90, 91] this includes the possibility that the ionic liquid may poison specific catalytic sites of the catalytic material, thus suppressing unwanted side reactions [92]. 

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