[A study on the effect of methanal during determination of carbon monoxide in blood].
OBJECTIVE
To confirm whether formaldehyde disturb detecting carbon monoxide in blood. To give an evidence that can be used for detecting carboxyhemoglobin more accurately in carbon monoxide posioning appraises.


METHODS
Blood samples came from carbon monoxide poisoning and the health were collected. Regular methods for detecting carboxyhemoglobin were used. Observing and comparing the detection results between which were spiked with methanal and no spiked one were performed.


RESULTS
Methanal will affect the result of following experiments such as heating, adding NaOH, absorbed by PdCl2 and spectrophotometry.


CONCLUSIONS
The samples which contaminated by formaldehyde couldn't be used for detecting carboxyhemoglobin.
Yan
You-yi
YY
West China School of Preclinical and Forensic & Medicine, Sichuan University, Chengdu 610044, China.
Liao
Lin-chuan
LC
Yang
Lin
L
D002248:Carbon Monoxide / Q000097:blood*; D002249:Carbon Monoxide Poisoning / Q000097:blood / Q000175:diagnosis*; D002263:Carboxyhemoglobin / Q000032:analysis*; D005554:Forensic Medicine; D005557:Formaldehyde / Q000494:pharmacology*; D006801:Humans; D013053:Spectrophotometry / Q000379:methods; D013696:Temperature
D005557:Formaldehyde; D002248:Carbon Monoxide; D002263:Carboxyhemoglobin