concubine
发表于 2025-3-26 21:09:00
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catagen
发表于 2025-3-27 03:55:22
Introduction,en, phosphorus, sulphur etc), organometallic compounds and organic substances. The types of procedures used to determine each of these groups of substances in environmental sediment and living solid matter derived from water are discussed below under separate headings.
Gudgeon
发表于 2025-3-27 08:56:55
River and Stream Sediments,y is easily leached from the sediment under anaerobic conditions but not under aerobic conditions. When the sediments were incubated anaerobically, there was evidence of the release of volatile sulphur compounds.
Monotonous
发表于 2025-3-27 10:06:57
Lake and Pond Sediments,is chapter have been specifically applied to lake and pond sediments, and are grouped together here for convenience. Many methods specifically designed for lake sediment analysis take account of the fact that such samples contain higher concentrations of sulphide than do river sediments.
STEER
发表于 2025-3-27 17:19:27
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绝种
发表于 2025-3-27 20:45:12
Lacustrine Sediments,carbons in lacustrine sediments. The author reports a comparison, using standard oils, of conventional fluorescence emission spectra and spectra produced by synchronously scanning both excitation and emission monochromators.
Thrombolysis
发表于 2025-3-28 00:16:48
Fish,n of arsenic in marine sediments, has also been applied to the determination of arsenic in fish. The sample is first digested with a mixture of nitric, sulphuric and perchloric acids. Spiked samples of crayfish gave a 98–100 % recovery of arsenic by this procedure.
tendinitis
发表于 2025-3-28 02:07:52
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颂扬国家
发表于 2025-3-28 07:44:07
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homocysteine
发表于 2025-3-28 11:53:20
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