Quantitative Method for Determination of DDT and DDT Metabolites in Blood Serum

1970 ◽  
Vol 53 (6) ◽  
pp. 1287-1292 ◽  
Author(s):  
William E Dale ◽  
James W Miles ◽  
Thomas B Gaixes
Keyword(s):  
General Population ◽  
Oral Dose ◽  
Blood Serum ◽  
Extraction Method ◽  
Quantitative Method ◽  
Manufacturing Plant ◽  
Hexane Extraction ◽  
Ddt Metabolites ◽  
Pre Treatment

Abstract A new method for the extraction and determination of DDT and related materials in blood has been developed. Rats were given a single oral dose of 14C-labeled DDT, and it was demonstrated by parallel gas chromatographic and radiometric measurements that in vivointroduced DDT and related materials could not be removed quantitatively from serum by simple hexane extraction. Pre-treatment of the serum with equal volumes of formic acid released the binding of DDT and DDT metabolites and permitted the extraction of these materials with n-hexane, yielding 95% recovery. When applied to sera of men from the general population and of men who had been exposed to DDT for more than 10 years in a manufacturing plant, this method gave consistently higher results than did the simple hexane extraction method.

scholarly journals SURGICAL TREATMENT OF COMPLICATED FORMS OF ERYSIPELAS

2021 ◽  
Vol 48 (1) ◽  
Author(s):  
L. A. Vasylevska
Keyword(s):  
Surgical Treatment ◽  
General Population ◽  
Blood Serum ◽  
Pathological Process ◽  
City Hospital ◽  
Sensitive Test ◽  
Non Profit ◽  
Upper And Lower Extremities ◽  
Pathological Focus

Abstract Purpose of the study. The goal of the article is to find out the frequency of complicated forms of erysipelas among the general population of the disease and to determine the main directions for their surgical treatment. Materials and methods. 114 case histories of patients who were hospitalized in the center of purulent-septic surgery of the Non-profit municipal enterprise «City Hospital № 3» in Zaporozhye for the period 2019–2020 were analyzed retrospectively and prospectively. Results. It was found that most often the focus was localized on the upper and lower extremities. In the complex treatment of patients with surgical forms of erysipelas, the main place belongs to antibiotic therapy (ABT) and early surgical treatment of the area of the pathological process. Determination of the level of procalcitonin in blood serum makes it possible to assess the progression of the inflammatory process and is a sensitive test for the effectiveness of treatment. Conclusions. The incidence of complicated forms of erysipelas requiring surgery in the general population was 78,9%. Patients with circular erysipelas need the most extensive surgery, when it is necessary to perform an autopsy within the area of inflammation with longitudinal and transverse wavy autopsies throughout the pathological focus. Determination of the level of procalcitonin in blood serum makes it possible to assess the progress of the process and is a sensitive test for the effectiveness of treatment. Keywords: surgical forms of erysipelas, procalcitonin.

scholarly journals SURGICAL TREATMENT OF COMPLICATED FORMS OF ERYSIPELAS

2020 ◽  
Vol 47 (4) ◽  
Author(s):  
L. A. Vasylevska
Keyword(s):  
Surgical Treatment ◽  
General Population ◽  
Blood Serum ◽  
Pathological Process ◽  
City Hospital ◽  
Sensitive Test ◽  
Non Profit ◽  
Upper And Lower Extremities ◽  
Pathological Focus

Abstract Purpose of the study. The goal of the article is to find out the frequency of complicated forms of erysipelas among the general population of the disease and to determine the main directions for their surgical treatment. Materials and methods. 114 case histories of patients who were hospitalized in the center of purulent-septic surgery of the Non-profit municipal enterprise "City Hospital № 3" in Zaporozhye for the period 2019–2020 were analyzed retrospectively and prospectively. Results. It was found that most often the focus was localized on the upper and lower extremities. In the complex treatment of patients with surgical forms of erysipelas, the main place belongs to antibiotic therapy (ABT) and early surgical treatment of the area of the pathological process. Determination of the level of procalcitonin in blood serum makes it possible to assess the progression of the inflammatory process and is a sensitive test for the effectiveness of treatment. Conclusions. The incidence of complicated forms of erysipelas requiring surgery in the general population was 78,9%. Patients with circular erysipelas need the most extensive surgery, when it is necessary to perform an autopsy within the area of inflammation with longitudinal and transverse wavy autopsies throughout the pathological focus. Determination of the level of procalcitonin in blood serum makes it possible to assess the progress of the process and is a sensitive test for the effectiveness of treatment. Keywords: surgical forms of erysipelas, procalcitonin

PROFITABILITY ANALYSIS OF TERUBUK FARMING (SACCHARUM EDULE HASSKARL) IN SUBDISTRICT TOSA DISTRICT OF EAST TIDORE OF TIDORE ISLAND

2018 ◽  
Author(s):  
Suwandi S. Sangadji
Keyword(s):  
Data Collection ◽  
Research Method ◽  
Quantitative Method ◽  
Secondary Data ◽  
Primary Data ◽  
Profitability Analysis ◽  
Sample Method ◽  
Document Review ◽  
Revenue Production

The purpose of this researchment is to ascertain how wide the farming of species Saccharun Edule Hasskarl (terubuk) in sub district Tosa, district of East Tidore of Tidore Island through the indicator of the value revenue, production and selling prices so that the farmers will achieve The Break Event Point (BEP). The research method was used a quantitative method with the number of samples of 30 people. The determination of the sample method is using the census method or involving all members of the population into a sample of researchment. The secondary data collection was done by using library literature in the form of document review and relevant references to research object while primary data collection was done by using questionnaire. The data is using equation R /C Ratio, BEP Revenue, BEP Price, and BEP Production. Therefore from the results of the researchment it can be explained that the two of the thirty farmers come through the break event point, while the other twenty-eight farmers declared having a business that worth to be develop or experiencing profit, because the R/C ratio is above 1.0 with average profit reach Rp. 989.000, - per production / farmer.

Sign in / Sign up

Export Citation Format

Share Document