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HIGH SCHOOL

Chemistry

Concept Videos

Analytical Chemistry

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Method Development and Sampling Techniques

Sample Transport and Storage Basics

Description

Sample transport and storage help keep specimens intact before testing. Moving a sample from the collection point to the laboratory requires careful handling. The sample should be sealed well and clearly labeled. These steps help prevent cross-contamination and support reliable results.

Temperatu...

Transcript

样本处理包含两个关键方面,以确保结果准确——储存和运输。

运输是指在不改变样品物理或化学特性的前提下,将样品转移至实验室的过程。在运输过程中,根据样品的性质,可能需要采用冷冻或化学保存等保存技术,以防止样品发生改变。

例如,冷冻可防止对温度敏感的样品发生热降解。向样品中添加抗菌剂等化学防腐剂可防止微生物生长。

在实验室中,正确储存样品对于防止样品降解至关重要。例如,热不稳定的样品需装入密封容器中,储存于冰箱内或进行冷冻。

对光敏感的液体样品必须储存在避光环境或棕色瓶中。

Tags

Sample TransportationSample StorageSample PreservationTemperature ControlLight ProtectionChemical PreservationAnticoagulant UseInsulated ContainersRefrigerated Vehicles