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- [4] DETERMINATION OF SULFUROUS ACID IN SMALL QUANTITIES IN FOODS ZEITSCHRIFT FUR LEBENSMITTEL-UNTERSUCHUNG UND-FORSCHUNG, 1969, 140 (01): : 13 - &
- [9] The determination of small quantities of zinc JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY-US, 1921, 13 : 696 - 697