Physico-chemical characterization of playground sand dust, inhalable and bioaccessible fractions
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 اولPhysico-chemical characteristics of DNA chromatin fractions from calf thymus.
Structural and functional differentiation of chro matin implies the search for the methods of isolation and characterization of DNA bound with chromatin fractions. Preliminary fractionation of chromatin fol lowed by the isolation of DNA from these fractions are the methods frequently used. The isolation procedure put forward by Strazhevskaya and Struchkov [1] makes it possible to isolate DNA ...
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Background and Purpose: Wood dust have been approved as a harmful and carcinogenic agent for humans. This study aimed to evaluate risk assessment of Workers' exposure to inhalable wood dust among 100 workers in 25 furniture manufacturing workshops in one of the northern cities in Iran. Materials and Methods: NIOSH0501 method was used to assess the occupational exposure to Inhalable wood dust a...
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Antisera prepared by immunizing 10 virgin heifers with semen pooled from eight bulls of four dairy breeds reacted in immunodiffusion tests to indicate that bovine semen contains at least four isoantigens. No visible precipitin reaction was observed when such sera were diffused against vesicular gland fluid, but all four antigens were present in the testicular fluid, cauda epididymal plasma, cau...
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Viruses isolated from fish with viral haemorrhagic septicaemia (VHS), infectious haematopoietic necrosis (IHN), spring viraemia of carp (SVC), swim-bladder inflammation (SBI) and pike fry disease (PFD) have been grown to high titre in fathead minnow cells. While our preparations of the IHN, SVC, SBI and PFD viruses showed typical rhabdovirus morphology with bullet-shaped particles and distinct ...
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ژورنال
عنوان ژورنال: Chemosphere
سال: 2018
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2017.09.101