Calcium, a main mineral component contained in mineral water, is an essential element for humans anda nutrient necessary for bone formation. ZA3000 series instruments employ the polarized Zeemanmethod for BKG corrections even for the flame method and thus, provide accurate BKG corrections andstable baselines even at long wavelengths (longer than 400 nm). The co-existing salts cause ionizationinterferences when calcium is analyzed by the flame method. However, by adding lanthanum as the ionization suppression agent, the analysis without the interference by the co-existing salts is possible.

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分析礦泉水中的鈣（Ca）元素（火焰法）.pdf