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Jun 01, 2018 · In the laboratory, the filter paper cone was removed from the vacuum cleaner and dust samples were sieved (250 μm mesh), placed in glass vials and stored in the freezer until analysis. In this study we analysed the dust size fraction <250 μm because it has higher adherence to human skin ( Hee et al., 1985 , Yamamoto et al., 2006 ).
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Study on migration of phenolic and volatile organic compounds from plastic pipes used in plumbing home networks into tap water
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Aug 27, 2020 · Recycling Prospects in Saudi Arabia. The concept of waste recycling has been getting increasing attention in Saudi Arabia in recent years. The country produces around 15 million tons of municipal solid waste each year with an average daily rate of 1.4 kg per person. This rate is projected to double (30 million tons per year) by 2033 with
Buraydah, Saudi Arabia Correspondence Mahmoud E. Ahmed, Dairy Science Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. Email: Mahmoud.Hamouda@agr.au.edu.eg Abstract Milk fat is a complex natural fat and contains around 400 fatty acids. The objec-tives of this study were to extract fat from bovine milk using two different
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Oct 26, 2017 · Table 1. Chemical composition of the essential oil of Coffee arabica L. husks growing in SA.. Gas chromatography-mass spectroscopy. The GC-MS analysis was performed in a Perkin Elmer Clarus 600 gas chromatograph inked to a mass spectrometer (Turbomass) available at Central Laboratory, College of Pharmacy, King Saud University, Riyadh.
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Jul 03, 2013 · Gaseous products were adsorbed on a glass tube containing two layers (100 mg and 50 mg) of a porous polymer resin. The air flow rate was set to 0.2 L min–1. Samples were taken in 50 min and 100 min at this flow rate. Air was passed through an adsorption tube using a pump.
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