Do You Really Know the Differences Between the Glass Sample Vials?
The sample vials supplied by Hawach are precisely designed, engineered, and manufactured to exacting specifications. Hawach also rigorously tests dimensions such as polishing, OD, and length – to ensure that each vial is exactly matched to the autosampler jaw and sample system. The design and manufacture of caps and septa ensure a good seal and are compatible with other brands and other instruments.
Chromatographic performance tests on silicone rubber septa are performed to ensure the high purity requirements, impurity contamination elimination, and possible analytical errors. The 2-40ml chromatographic injection bottles, headspace sample bottles, and storage bottles are commonly used. Suitable for most autosamplers
Glass sample vials
Glass sample vials are the most common small consumables in the lab. But have you noticed what materials are made of glass, what the differences between these materials are and how to distinguish between good and bad. Glass sample vials are generally made of borosilicate glass, with the commonly seen expansion coefficients of 3.3, 5.0 and 6.8. However, when the manufacturer sells the sample vial, there is almost no intended description of the material, so few people will care about what material it is.
3.3: Mainly used in experimental instruments and household heat-resistant utensils; low expansion ratio, high-temperature resistance, high strength, high light transmittance, and high chemical stability; water resistance level 1.
5.0: Neutral glass, low expansion rate, high-temperature resistance, high strength, high chemical stability; water resistance level 1.
6.8: Low borosilicate glass, the chemical performance is worse than 3.3, but the cost is much lower than 3.3, it is suitable for one-time use.