Basic Training 4th Annual ICP Conference

Silicon in silicone oils

2 – Sample Preparation Possible approaches

1. Acid digestion 2. Base digestion 3. Ashing/fusion 4. Dilute-and-shoot

Possible concerns ! volatility of silicone oils

Silicon in silicone oils

2 – Sample Preparation Possible approaches

Advantages

Disadvantages slow (?), requires HF

1. Acid digestion 2. Base digestion 3. Ashing/fusion 4. Dilute-and-shoot

minimal equipment, few reagents

minimal equipment, few reagents

basic solutions

minimal equipment

flux matrix

simple

chemistry

Method 1. Combine equal parts sample and alcoholic 1M KOH in LDPE 2. Heat 60 o C for 4 hours

Possible concerns ! volatility of silicone oils