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Notes to the Wei lue - University of

Section 11 – Da Qin (Roman territory/Rome) 11.1. The kingdom of Da Qin 大秦 [Ta Ch’in] = Roman territory. The use of the exalted name “Da Qin” (literally

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ARSENIC AND ARSENIC COMPOUNDS (EHC

1. SUMMARY 1.1 Properties and analytical procedures. Arsenic is a metalloid widely distributed in the earth’s crust and present at an average concentration of 2 mg/kg.

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Collection of weekly news and commentaries from John Betts, lecturer, author, photographer, mineral collector, and mineral dealer. Practical everyday advice for

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