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- [22] Determination of small amounts of copper in spray residues INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1939, 11 : 0494 - 0495
- [23] Note on the determination of small amounts of bismuth in copper INDUSTRIAL AND ENGINEERING CHEMISTRY, 1926, 18 : 596 - 596
- [24] SPECTROPHOTOMETRIC DETERMINATION OF SMALL AMOUNTS OF MERCURY IN COPPER JAPAN ANALYST, 1972, 21 (07): : 925 - &
- [27] Determination of small amounts of arsenic antimony, and tin in lead and lead alloys INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1943, 15 : 626 - 629