title: [A study on the effect of methanal during determination of carbon monoxide in blood].
abstract: 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.
authors.affiliation: West China School of Preclinical and Forensic & Medicine, Sichuan University, Chengdu 610044, China.
authors.forename: You-yi
authors.initials: YY
authors.lastname: Yan
authors.forename: Lin-chuan
authors.initials: LC
authors.lastname: Liao
authors.forename: Lin
authors.initials: L
authors.lastname: Yang
mesh_terms: 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
chemical_list: D005557:Formaldehyde; D002248:Carbon Monoxide; D002263:Carboxyhemoglobin