Quartz Cuvette And Glass Cuvette

1、 What is the difference between quartz cuvettes and glass cuvettes

Generally, quartz cuvettes can be used for analysis of ultraviolet and visible light, while glass has absorption in the ultraviolet region, so glass cuvettes are only used for analysis in the visible region

When testing samples with absorption in the ultraviolet region, use a quartz cuvette. When testing samples with absorption only in the visible light region, use a glass cuvette. Quartz cuvettes do not absorb in the visible and ultraviolet light regions, while glass cuvettes absorb in the ultraviolet region, so they cannot be used in the ultraviolet light region

For ordinary non optical professionals, two types of colorimetric plates cannot be separated by the eyes. However, the hardness difference between the two is significant. Quartz colorimetric plates have a hardness several tens of times higher than glass colorimetric plates. If the two are ground together, the quartz colorimetric plates will rarely be worn, while glass colorimetric plates will wear very much

Due to the transmittance range of quartz cuvettes ranging from 0.12-4.5 microns, there are no absorption peaks over a wide spectral range. However, glass cuvettes have only 0.4-4 microns and many ion absorption peaks. Therefore, quartz cuvettes are much superior to glass cuvettes, and laboratory data is more accurate and reliable

2、 The difference in the applicable range between quartz and glass colorimetric dishes

1. Quartz cuvettes can be used for analysis of ultraviolet and visible light, while glass has absorption in the ultraviolet region, so glass cuvettes are only used for analysis in the visible region

2. When testing samples with absorption in the ultraviolet region, use a quartz cuvette. When testing samples with absorption only in the visible light region, use a glass cuvette. Quartz cuvettes do not absorb in the visible and ultraviolet light regions, while glass cuvettes absorb in the ultraviolet region, so they cannot be used in the ultraviolet light region

3. Two types of cuvettes cannot be separated by the eyes. However, there is a significant difference in hardness between the two. Quartz cuvettes have a hardness several tens of times higher than glass cuvettes. If the two are ground together, the quartz cuvette will rarely be worn, while glass cuvettes will wear very much

4. The transmittance range of a quartz cuvette ranges from 0.12 to 4.5 microns, with no absorption peaks over a wide spectral range. However, a glass cuvette has only 0.4-4 microns and many ion absorption peaks. Therefore, a quartz cuvette is much superior to a glass cuvette, and the laboratory data is more accurate and reliable

5. Quartz cuvettes have a wider range of applications, with wavelengths as small as 210nm and can be used in the ultraviolet range. Generally, nucleic acids and proteins can be tested using quartz cuvettes, which can be used to test any reagent. However, the price is high, usually costing several hundred yuan per cuvette. Glass cuvettes have greater limitations and are mainly used in the visible range, which is relatively cheap. Plastic cuvettes are also popular in the market now, with the characteristic of being cheap and not afraid of falling, It can be tried all at once, saving time and effort, and is safer. It can also be made of different materials, but the wavelength range is still smaller than that of quartz cuvettes.