transparent VOA vials agent Aijiren-COD Vials Supplier Jun 12, 2021 · transparent VOA vials agent Aijiren Techniques for Optimizing the Analysis of Volatile - Aijiren VOA spiked samples were prepared by adding 100 µL of the 50.0-µg/mL three component solution and 100 µL of the 100-µg/mL 60-component VOC standard to 500 mL of water in a 1.0-L screw cap bottle.