Influence of the moisture content on supercritical fluid extraction and Soxhlet extraction of dioxins from soil
نویسندگان
چکیده
منابع مشابه
extraction and acetylation of purified trypsin from bovin pancreas and study of some its physico-chemical properties
آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
15 صفحه اولFully-continuous Supercritical Fluid Extraction of Naphthalene from Soil Slurries
The research objective was to build a fully-continuous lab-scale supercritical fluid extraction process to remove naphthalene from soil slurries. Both the carbon dioxide and the soil slurry were pumped into an extraction vessel simultaneously and continuously for the duration of an experimental run. Delhi Loamy Sand spiked with approximately 10 000 ppm (wt) of naphthalene and water comprised th...
متن کاملthe influence of corpus luteum on follicular fluid composition from different size follicles and their relationship to serum concentrations in sanjabi ewes
the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...
Influence of the characteristics of soil and fly ash on the supercritical carbon dioxide extraction of dioxins.
Several investigations on the extraction of dioxins from soil and fly ash with supercritical fluid have been reported; however, few of them describe the influence of components on the extraction. We extracted dioxins from eight samples with different values of organic carbon content and surface area with supercritical CO(2) at a temperature of 463 K, a pressure of 40 MPa, and using 10% toluene ...
متن کاملcontent analysis of l1 and l2 writing textbooks and the perception analysis of university professors on the influence of english writing expertise on the persian in an efl context
the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 2003
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.52.989