[Study on the relationship between PMI and the concentration of zincum and nickel in the vitreous humor of rabbit after death].
OBJECTIVE
To seek a exact method of estimating postmortem interval (PMI).


METHODS
This study detected the concentration of zincum(Zn) and nickel(Ni) in vitreous humor of rabbit at hour 96 after death and explored the relationship between their concentration and PMI using a method ICP-MS.


RESULTS
The concentration of Zn and Ni in vitreous humor of rabbit at hour 24 after death were related to PMI significantly; The formulae of the relationship between PMI and Zn concentrations is y = 0.1404x2 - 1.3351x + 3.8298 (within 24 h; R2 = 0.9202). The formula of the relationship between PMI and Ni concentrations is y = 0.0043x2 - 0.0596x + 0.2665(within 24 h; R2 = 0.9103).


CONCLUSIONS
The concentration of Zn and Ni in vitreous humor of rabbit may be a reference indicator to estimate early PMI.
Gong
Z Q
ZQ
Department of Forensic Medicine, Jiangxi Medical College, People's Court of Nanchang, Nanchang 330006.
Xu
X M
XM
Zeng
X B
XB
Sun
Y G
YG
Wang
D W
DW
D000818:Animals; D005260:Female; D005554:Forensic Medicine; D008297:Male; D009532:Nickel / Q000032:analysis*; D011180:Postmortem Changes; D011817:Rabbits; D013997:Time Factors; D014822:Vitreous Body / Q000737:chemistry*; D015032:Zinc / Q000032:analysis*
D009532:Nickel; D015032:Zinc