"22340" . . . . . . "copper; calibration; uncertainty; standard solution; gravimetry; isotope dilution; atomic absorption spectrometry"@en . . "6" . "Uncertainty of the concentration of a copper calibration solution"@en . "0949-1775" . . "Pol\u00E1k, Jan" . "Kopl\u00EDk, Richard" . "Uncertainty of the concentration of a copper calibration solution" . "3"^^ . . . . "13" . "The postulated uncertainty of many commercially available standard solutions is estimated on the basis of uncertainties of individual preparation steps. The declared concentration of Cu standard solution (1000 +/- 2) mg/L was verified by gravimetric analysis (found (1000.7 +/- 0.4) mg/L), isotope dilution with commercial and laboratory-prepared isotope-enriched solutions (found (1000.6 +/- 16.8) mg/L and (1002.4 +/- 3.6) mg/L, respectively), and by atomic absorption spectrometry (found (1001.4 +/- 5.3) mg/L). Uncertainty budgets of all used methods are given and the procedures of uncertainty estimation are fully documented." . . "5"^^ . "RIV/60461373:22340/08:00021380!RIV10-MSM-22340___" . . . "Z(MSM6046137307)" . "000256827700005" . "Uncertainty of the concentration of a copper calibration solution" . "Such\u00E1nek, Miloslav" . "The postulated uncertainty of many commercially available standard solutions is estimated on the basis of uncertainties of individual preparation steps. The declared concentration of Cu standard solution (1000 +/- 2) mg/L was verified by gravimetric analysis (found (1000.7 +/- 0.4) mg/L), isotope dilution with commercial and laboratory-prepared isotope-enriched solutions (found (1000.6 +/- 16.8) mg/L and (1002.4 +/- 3.6) mg/L, respectively), and by atomic absorption spectrometry (found (1001.4 +/- 5.3) mg/L). Uncertainty budgets of all used methods are given and the procedures of uncertainty estimation are fully documented."@en . "5"^^ . . "Mestek, Oto" . . . . . "Uncertainty of the concentration of a copper calibration solution"@en . . "401411" . . "Accreditation and Quality Assurance" . "[52EDAB5761C9]" . "RIV/60461373:22340/08:00021380" . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Mali\u0161ov\u00E1, Kate\u0159ina" .