📋 Workflow
Full workflow, products add-to-cart directly1
Weigh & pretreat
15 minWeigh an appropriate sample amount and homogenize or dry it
💡 Tip Record wet weight and moisture
⚠️ Caution Match sample amount to reagent capacity
🧪 Materials for this step (click to shop by spec/brand)
2
Add digestion reagents
10 minAdd nitric acid and oxidant; seal the digestion vessel
💡 Tip HNO₃–H₂O₂ is common
⚠️ Caution Add acid in fume hood
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3
Microwave/wet digestion
60 minHeat to target temperature/pressure per program to complete digestion
💡 Tip Stepwise heating avoids bursting
⚠️ Caution Monitor temperature/pressure alarms
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4
Cool & make up
30 minCool, transfer the digest and make up to volume in a volumetric flask
💡 Tip Rinse vessel walls with ultrapure water
⚠️ Caution Cool fully to avoid error
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5
Blank & QC
20 minDigest a blank in parallel and include QC to verify recovery
💡 Tip Blank assesses reagent-introduced elements
⚠️ Caution At least one blank per batch
🧪 Materials for this step (click to shop by spec/brand)
⚠️ 5 Common Beginner Mistakes
- ① Incomplete digestion lowering results
- ② Excessive temperature causing burst/volatilization
- ③ Reagent blank contamination raising background
- ④ Incomplete cooling affecting make-up
- ⑤ Evaporation to dryness losing analytes
❓ FAQ
+Microwave or wet digestion?
Microwave is faster/safer; wet is cheaper for routine.
+Which acids to digest?
Nitric acid primarily, optionally with H₂O₂ or HCl.
+Why a blank?
Subtract reagent-introduced background.