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1.4L HDS MiniCan™ Sampler (12 Hour)
基本信息:
价格:面议
供货周期:一周
品牌:ENTECH
货号:

 
参数规格:
规格:
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产品介绍

1.4L HDS MiniCan™ Sampler (12 Hour)

 

SKU: 29-MC1400H12

Rather than performing a traditional vacuum sampling event, MiniCans and Bottle-Vacs™ are initially filled with helium, or helium with a recovery surrogate, and active sampling occurs in response to the controlled exchange of helium with air through a diffusion region. An HDS™ diffusion zone’s internal diameter is 20–50 times larger than typical critical orifice samplers, so particulate plugging is virtually impossible. HDS™ eliminates the need for sampler calibration, as relative diffusion rates of Helium and air are virtually constant. And unlike passive sampling with tubes – where compounds lighter than Benzene are not recovered quantitatively – HDS monitoring recovers all compounds heavier than Helium.

 

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