Balanced dialysis device and dialysis method applied to trace biological sample

The invention provides a balance dialysis device and dialysis method applied to a trace biological sample, the balance dialysis device comprises a support structure, the support structure is a hollow structure, at least one end of the support structure is open, the outer surface of the support structure is covered with a dialysis bag, and the dialysis bag is fixed on the support structure in a sealed manner. An internal supporting structure is designed in the microcentrifuge tube, a section of dialysis bag is placed in the internal supporting structure, the free component in a sample solution is rapidly detected through a balance dialysis method, and the device is simple in structure, low in cost and high in balance speed and well meets the detection requirement for the free component in a microsample. 本发明提供了一种应用于微量生物样本的平衡透析装置及透析方法，包括：支撑结构，所述支撑结构为中空结构且至少一端为开口设置，在所述支撑结构的外表面覆盖设置有透析袋，且透析袋密封固定在所述支撑结构上。本发明通过在微量离心管中设计一个内部支撑结构将一段透析袋置于其中，实现平衡透析法快速检测样液中的游离组分，装置结构简单，成本低廉，平衡速度快，极好地满足微量样品中游离组分的检测需求。