1220高效液相色谱仪（二元梯度泵），带手动进样器、紫外检测器，标准流通池。
LC Gradient System VLIncludes gradient pump (max. pressure 400 bar) with integrated degasser, manual injector and variable wavelength detector with standard flow cell.
顶空瓶作为气体稀释和采集的仪器，采用顶空自动进样方式，避免了手动进样时进样量、进样注射器等因素带来的误差；
The head space bottle was used to be the instrument for diluting and collecting gas, which avoided errors form injection by hand and other factors;
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