Abstract
In pH=7.0 NH4Ac-HAc buffer solution,magnesium can react with picramazo-H-acid to form a 1∶2 blue complex.The molar absorptivity is 1.2×104L·mol-1·cm-1 at 632nm.Beer's law is obeyed in the range of 1.0—80μg/50mL.This method can be applied to the determination of magnesium in liangshan leaf tobacco with satisfactory results.
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Claims 3
Claim · model-written summary
The magnesium complex has a molar absorptivity of 1.2×104 L mol-1 cm-1 at 632 nm.
Verbatim
e0“This method can be applied to the determination of magnesium in liangshan leaf tobacco with satisfactory results”
e1“The molar absorptivity is 1.2×104L·mol-1·cm-1 at 632nm”
Claim · model-written summary
Beer's law is obeyed for magnesium at 1.0 to 80 μg per 50 mL.
Verbatim
e0“This method can be applied to the determination of magnesium in liangshan leaf tobacco with satisfactory results”
e2“Beer's law is obeyed in the range of 1.0—80μg/50mL”
Claim · model-written summary
The method gave satisfactory results when applied to magnesium determination in Liangshan leaf tobacco.
Verbatim
e0“This method can be applied to the determination of magnesium in liangshan leaf tobacco with satisfactory results”