Citation: ZHU Ying-Jie, GUO Lei, LIU Yi, GONG Ying, QIU Ze-Wu, WU Jian-Feng, XIE Jian-Wei. Rapid Surface-Enhanced Raman Spectroscopic Detection of Blood Cyanide Based on Pinhole Shell-Isolated Nanoparticle and Online Lysis-Purging and Trapping Approach[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(5): 627-632. doi: 10.11895/j.issn.0253-3820.160902 shu

Rapid Surface-Enhanced Raman Spectroscopic Detection of Blood Cyanide Based on Pinhole Shell-Isolated Nanoparticle and Online Lysis-Purging and Trapping Approach

ZHU Ying-Jie ^1, ,
GUO Lei ¹ ,
LIU Yi ¹ ,
GONG Ying ¹ ,
QIU Ze-Wu ² ,
WU Jian-Feng ¹ ,
XIE Jian-Wei ¹

1.
Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China;
2.
Department of Poisoning Treatment, Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, China

Received Date: 15 December 2016
Revised Date: 23 February 2017

Fund Project: This work was supported by the National Major Instrument Project of the Ministry of Science and Technology of China (No. 2011YQ03012411) and the National Science and Technology Major Project (No. 2014ZX09304307001).

A rapid and simple method for the determination of cyanide in blood was developed based on pinhole shell-isolated nanoparticles (pinSHINs)-enhanced Raman spectroscopy and an online lysis-purging and trapping approach. In the online lysis-purging and trapping device, the bound cyanide in blood can be cleaved through sulfuric acid acidification, and transferred into HCN volatile gas, then purged into alkaline solution to form NaCN solution, thus high-efficient liberation and entrapment of cyanide from the methemoglobin-bound form can be achieved. The pinSHINs substrate is quite stable to weaken the gold-dissolution effect caused by cyanide under strong alkaline condition, and therefore the detection window can be prolonged to 1 h comparing with 5 min of AuNPs. A limit of detection down to 10 μg/L and a linear range from 100-2000 μg/L in blood were achieved in this method. This method was further applied to rapid measurement of blood samples of cyanide exposed rats and clinic poisoned patients, which provided a sensitive, selective and reliable way for rapid detection of cyanide poisoning.
- Pinhole shell-isolated nanoparticle,
- Cyanide,
- Poisoned blood samples,
- Online lysis-purging and trapping,
- Surface-enhanced Raman spectroscopy
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