Ninhydrin-based spectrophotometric assays of trace cyanide
نویسندگان
چکیده
منابع مشابه
Ninhydrin-based Forensic Investigations: Ii. Cyanide Analytical Toxicology
Recently, a novel ninhydrin reaction with cyanide has opened new ways to detect this poison in the body fluids and the environmental samples. Mainly, detection of cyanide with ninhydrin at a crime scene could be of prime interest for forensic investigators. Besides, the reaction conditions are very common, except the need to avoid oxygen and oxidizers. The ninhydrin-based assay proved to be hig...
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A new sensitive spectrophotometric method has recently been developed for the trace determination of cyanide with ninhydrin. Cyanide ion was supposed to act as a specific base catalyst. Nevertheless, this paper demonstrates that the reported assay is based on a novel reaction of cyanide with 2,2-dihydroxy-1,3-indanedione, which affords purple or blue colored salts of 2-cyano-1,2,3-trihydroxy-2H...
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An extractive spectrophotometric method for the determination of cyanide in wastewater is developed. Cyanide is reacted with bromine to form cyanogen bromide, which subsequently reacts with pyridine. Glutaconic aldehyde is formed through the heterolytic cleavage of pyridine ring, which is then coupled with 4-amino salicylic acid. A yellow orange dye formed in alkaline medium is extractable in n...
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The availability of an easily measurable specific marker for diagnosis of a disease is an important but not always reachable objective. Emergency area is an area where decisions must be taken as quick as possible, and sometimes it is not clear if the patient is well enough to be treated as an outpatient or must be hospitalized. During last few years many new biomarkers and techniques for their ...
متن کاملNinhydrin-based Forensic Investigations I. Fingerprints
Ninhydrin reagents are currently used for amino acid determination. However, ninhydrin reacts with amino groups of amino acids and other components of palmar sweat to develop Ruheman’s purple. Therefore, it was used on a large scale to fingerprint development. Another recent application of ninhydrin is related to trace cyanide detection and determination. However, this simple compound may have ...
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ژورنال
عنوان ژورنال: Acta Chemica Iasi
سال: 2013
ISSN: 2067-2446
DOI: 10.2478/achi-2013-0006