5.Simultaneous Determination of Several Oestrogens and Progestogens by Near Infrared Spectroscopy
Hai FENG ; Guangming XU ; Dixia LIU ; Zhude XU
Chinese Journal of Analytical Chemistry 2001;29(2):175-177
Near infrared spectra in the range of 11501.4 ～ 6047.7 cm- 1 were used for simultaneously determination four oestrogens and progestogens: estradiol, estriol, medroxyprogesterone acetate and estrone. Constant offset elimination data pretreatment and partial least square regression method were used to resolve the spectra overlap of the four substancesas well as the tetrahydrofuran solvent. 100 samples were taken as the calibration set getting a correlation coefficient of 0. 99. The relative deviations for prediction samples were < 5 %. Some measuring factors influencing regressive accuracy like moistrue, temperature and dissolvent were discussed.
6.Study on Refolding Ways of Recombinant pro-Carboxypeptidase B
Xiao-Yan ZHANG ; Hai-Feng LIU ; Qin-Sheng YUAN ;
Microbiology 1992;0(02):-
dialysis.
7.Treatment of patients burned by ammonia and complicated with inhalation injury.
Yan-hui LIANG ; Qun LIU ; Shi-hai FENG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(3):175-176
Adolescent
;
Adult
;
Ammonia
;
adverse effects
;
Burns, Chemical
;
etiology
;
therapy
;
Burns, Inhalation
;
etiology
;
therapy
;
Female
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
;
Young Adult
8.A misdiagnosed case of hemangioma in the facial nerve.
Yan-ling DOU ; Tao LIU ; Hai-zhi FENG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(6):516-517
Adult
;
Cranial Nerve Neoplasms
;
diagnosis
;
Diagnostic Errors
;
Facial Nerve
;
pathology
;
Hemangioma
;
diagnosis
;
Humans
;
Male
Result Analysis
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