Ключевые слова:
Reproducibility|Atomic absorption spectrophotometry|Spectrophotometry|Lead|Concentration (chemical)|Determination of content|Precision|Absorption spectrophotometry|Spectrochemical analysis|Calibration|Sintered products|Flame photometry|Test equipment|Statistical methods of analysis|Testing conditions|Conglomerates|Specimen preparation|Iron ores|Concentrates|Zinc