Gold Standards
AAS calibration planner
Sample dilution
×
Final volume ÷ aliquot
Expected at AAS
mg/L
Gold after sample dilution
Working standard
100mg/L
1,000 mg/L stock · 10× dilution
Highest standard
mg/L
Blank + calibration levels
Enter your sample preparation below.
Standard preparation table
Each flask starts from the 100 mg/L working solution.
| Target Aumg/L | Transfer working solutionmL · from 100 mg/L | Diluent, approximatelymL · reference only | Make up tomL · final volume | Working solution share% v/v |
|---|
Correct the inputs to generate preparation recipes.
Make up to the final mark. The diluent amount is nominal; do not use it instead of the volumetric flask mark. Mix thoroughly.
Use the compatible diluent and final matrix specified by your validated Au method. Match the blank, standards, and prepared samples, accounting for acid already in the stock. This calculator does not prescribe an acid recipe.
“Working solution share” means volume of working solution ÷ final volume × 100. It is not gold purity or acid percentage.
See the calculation
How the suggested levels are chosen
Expected AAS concentration = expected original solution concentration ÷ sample dilution factor.
The planner aims for a top standard about 25% above that estimate, rounded upward to a convenient level. It proposes 3–5 nonzero levels and a blank. Entered method limits constrain the set. This spacing is a planning rule, not an instrument-specific optimum.
Confirm sensitivity, linearity, blanks, and an independent check standard using your laboratory method. A concentration list alone cannot prove a valid calibration. If the measured sample falls outside the validated range, adjust preparation and remeasure.
mg/L is mass per volume. It is only approximately numerically equal to ppm by mass for dilute aqueous solutions near 1 kg/L.
Calibration principles: EPA Method 7000B, sections 1.2, 1.5 and 10. General FAAS guidance; not a validated gold method for your matrix.
Process-liquor compatibility: do not add acidic gold stock or acid directly to cyanide-bearing liquor. It can release toxic hydrogen cyanide. For Eco-Goldex or other leach reagents, check the SDS and use a validated preparation method; this page calculates dilution quantities only. NIOSH reference.
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