碎浆法检验硅藻的应用

目的探讨一种硅藻检验新技术。方法取材5g,用碎浆法纯机械破机,离心后涂片、镜检。结果除个别羽纹纲硅藻外大部分硅藻纹理清晰、容易辨认,还能灵敏地检出有机硅藻。结论碎浆法检验硅藻技术操作简单、成本低廉、检出率高,对身体和环境几乎无损害。

Application of diatom detection using knead pulp method

OBJECTIVE: A novel technology for detection of diatom was discussed. METHODS: Five grams of testing sample were taken and the organics were removed using simple mechanical knead pulp method. The homogenized samples were concentrated by centrifugation, smeared, and then examined under light microscope. RESULTS: Except for a few feather's grains, the vast majority of diatom could be identified easily with clear diatom striations. The organic diatom could also be easily detected by this methodology. CONCLUSION: The detection of diatom using knead pulp method is not only simple and inexpensive with a higher successful rate, but also causes nearly no harm to human and environment.