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Melzer's reagent
Melzer's reagent (also known as Melzer's solution or informally as Melzer's) is a chemical reagent used by mycologists to assist with the identification of fungi.
==Composition==
Melzer's reagent is an aqueous solution of chloral hydrate, potassium iodide, and iodine. Depending on the formulation, it consists of approximately 2.50-3.75% potassium iodide and 0.75–1.25% iodine, with the remainder of the solution being 50% water and 50% chloral hydrate.〔Largent D, et al. 1977. ''How to Identify Mushrooms to Genus III: Microscopic Features''. Arcata, CA: Mad River Press. ISBN 0-916422-09-7. p 25–26.〕〔Miller OK, Miller H. 2006. ''North American Mushrooms: A Field Guide to Edible and Inedible Fungi''. Guilford, CT: Falcon Guide. ISBN 0-7627-3109-5. p 549.〕 Melzer's is toxic to humans if ingested due to the presence of iodine and chloral hydrate.〔 Due to the legal status of Chloral hydrate, Melzer's reagent is difficult to obtain. To cope with the problems procuring chloral hydrate, Rutgers scientists have developed a working substitute for use in Microscopy known as (Visikol™ ),〔http://otc.rutgers.edu/pdf/Simon-2012-146.pdf〕 which is compatible with Lugol's iodine, forming a suitable modern replacement for Melzer's.
Melzer's reagent is part of a class of iodine/potassium iodide (IKI)-containing reagents used in biology; Lugol's iodine is another such formula.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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