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PHÖÔNG PHAÙP PHAÂN TÍCH KHOÁI LÖÔÏNG
1. L òch söû
2. Nguyeân taéc
3. Phaân loaïi
4. Ñaëc ñieåm
5. Caùch tính keát quaû
6. Caùc giai ñoaïn cuûa phöông phaùp
7. ÖÙng duïng
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Lòch söû
Theodore W. Richard (1868 –
1928) ñaõ phaùt trieån vaø caûi tieán
nhieàu kyõ thuaät phaân tích khoái
löôïng cuûa baïc vaø clo vaø xaùc ñònh
25 nguyeân töû khoái
ngöôøi Myõ ñaàu tieân nhaän giaûi
Nobel hoùa hoïc naêm 1914
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Theodore W. Richard (1868 –1928)
Theodore W. Richards (1868 -
1928) and his graduate students at
Harvard developed or refined many
of the techniques of gravimetric
analysis of silver and chlorine.
These techniques →
determine the atomic weights of
25 of the elements and
→determining the chloride
content by gravimetric methods.
From this work Richards became
the first American to receive the
Nobel Prize in Chemistry in 1914.
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