Comment on "Rapid visual detection of blood cyanide" by C. Männel-Croisé and F. Zelder, Analytical Methods, 2012, 4, 2632.

Comment on "Rapid visual detection of blood cyanide" by C. Männel-Croisé and F. Zelder, Analytical Methods, 2012, 4, 2632.
复制标题

对 C. Männel-Croisé 和 F. Zelder 的“血液氰化物快速视觉检测”的评论,分析方法,2012 年,4,2632。

DOI:
10.1039/c4ay00190g
复制
发表时间:
2015
期刊:
Analytical methods : advancing methods and applications
影响因子:
--
通讯作者:
Boss,GerryR
Boss,GerryR
中科院分区:
--
文献类型:
--
作者:
Kadjo,AkindeF;Dasgupta,PurnenduK;Boss,GerryR

文献摘要

参考文献

相似文献

在火灾中吸入烟雾的受害者中,吸入HCN引起的氰化物中毒非常常见。虽然毒性作用主要来自其对细胞色素c氧化酶的抑制作用,但大多数氰化物与血液中的高铁血红蛋白(metHb)结合。它可以被认为是解毒机制:早期使用的解毒剂之一是亚硝酸盐,其主要通过将血红蛋白转化为metHb(通常存在于总血红蛋白的0.11%的程度)起作用。维生素B12(羟钴胺素)和相关类似物长期以来一直被认为对氰化物具有高亲和力,并已被用作解毒剂-氰化物与这个一般家族中的许多化合物的结合也导致颜色的显着变化,可用于分析目的。Männel-Croisé和Zelder(Anal. Methods,2012,4,2632)提倡将相关化合物直接加入血液样品中,并在固相萃取柱上分离有色的被测对象。虽然他们证明了有吸引力的快速测量氰化物的加标血液样本,我们认为,这是不是一个实际可用的程序,无论使用的确切显色剂。与metHb结合的氰化物在1分钟反应中解离得太慢,无法如所建议的那样工作-我们认为原因不明(例如,他们的血液样品中的metHb水平异常低),添加到他们的血液样品中的氰化物没有(有时间)与metHb结合,并且这些样品可能不类似于其中显著量的氰化物将与metHb结合的真实的情况。
Cyanide poisoning from inhaled HCN is all too common in victims of smoke inhalation in fires. While the toxic effects arise primarily from its inhibitory effects on cytochrome c oxidase, the majority of the cyanide binds to methemoglobin (metHb) in the blood. It can be considered as the detoxification mechanism: one of the antidotes used earlier was nitrite which primarily works by converting hemoglobin to metHb (normally present to the extent of ∼1% of the total hemoglobin). Vitamin B12 (hydroxocobalamin) and related analogs have long been known to have high affinity for cyanide and have been used as antidotes – the binding of cyanide to many compounds in this general family also results in a significant change in color that can be used for analytical purposes. Männel-Croisé and Zelder (Anal. Methods, 2012, 4, 2632) have advocated direct addition of a related compound to blood samples and isolating the colored measurand on a solid phase extraction cartridge. While they demonstrated attractive rapid measurement of cyanide in spiked blood samples, we believe that this is not a practically usable procedure regardless of the exact chromogenic reagent used. Cyanide bound to metHb dissociates too slowly for a 1 min reaction to work as suggested – we believe for reasons unknown (e.g., metHb levels in their blood samples unusually low), cyanide added to their blood samples did not (have time to) bind to metHb and these samples may not resemble real situations where significant amount of the cyanide will be bound to metHb.
DOI: --
发表时间: 1982
影响因子: 5.6
作者:
Dietmar Mischke;M. Pardue
通讯作者: M. Pardue
用克隆 DNA 片段分析果蝇发育过程中聚腺苷酸化 RNA 丰度的变化。
DOI: 10.1016/s0012-1606(81)80008-5
发表时间: 1981
影响因子: 2.7
作者:
H. Biessmann
通讯作者: H. Biessmann
DOI: --
发表时间: 1977
期刊: Cell
影响因子: 64.5
作者:
J. Bonner;M. Pardue
通讯作者: M. Pardue
果蝇胚胎中组蛋白 mRNA 合成和周转率的变化
DOI: --
发表时间: 1980
期刊: Cell
影响因子: 64.5
作者:
K. Anderson;J. Lengyel
通讯作者: J. Lengyel
DOI: 10.1016/0092-8674(77)90212-4
发表时间: 1977-01-01
期刊: CELL
影响因子: 64.5
作者:
GLOVER, DM;HOGNESS, DS
通讯作者: HOGNESS, DS