FSI-12 Fully Automatic Free Silicon Dioxide Pre treatment Instrument

1. Key points of sample pretreatment

• Filter membrane selection: It is recommended to use silver membrane or PVC membrane (to avoid interference from quartz membrane)
• Sample size control: recommended dust load of 0.5-2mg/cm ²
• Uniformity guarantee: Ultrasonic dispersion treatment for agglomerated particles

2. Instrument maintenance requirements

• Regular replacement: Acid mist absorbent (recommended to be replaced every 50 times)
• System calibration: Perform monthly temperature sensor calibration
• Sealing inspection: Focus on the integrity of the O-ring of the digestion tank

3. Safety protection measures

• Personal protection: Wear acid resistant gloves and goggles during operation
• Emergency preparedness: equipped with emergency sprinkler system and neutralizing agent
• Waste liquid treatment: Collect and digest waste liquid for unified treatment

4. Outlook for Technological Development

1. Intelligent upgradeDevelop AI programs to automatically optimize digestion parameters
2. Joint technologyOnline combination with infrared spectrometer/XRD
3. Green ChemistryExploring low toxicity alternative reagents (such as organic acid systems)
4. High pass quantizationDeveloping a 96 well plate parallel processing system
5. On site equipmentDevelop a portable on-site pre-processing device

The pre-treatment instrument for free silica significantly improves the accuracy and efficiency of SiO ₂ analysis in occupational health testing through standardized and automated sample processing procedures. Practical application has shown that the device can adapt to the special processing requirements of dust samples in different industries, and ideal pre-treatment effects can be achieved through parameter optimization. With the advancement of technology, intelligent and high-throughput pre-processing equipment will further promote the development of occupational health risk assessment work.