Latihan Soal Penggunaan Spektrofotometer Vis

The correct answer states that the spectrophotometer should be placed on a flat surface. This is important because placing it on a flat surface ensures stability and accuracy in the measurements. If the spectrophotometer is placed on an uneven or sloping surface, it can affect the alignment of the light source and detector, leading to inaccurate readings. Additionally, a flat surface helps to minimize vibrations and disturbances that can interfere with the measurements.

Kuarsa dapat digunakan untuk analisa kuantitatif dengan spektrofotometer vis karena kuarsa memiliki sifat transparan terhadap cahaya yang melalui spektrofotometer. Kuarsa juga memiliki sifat tahan terhadap korosi dan reaksi kimia, sehingga tidak akan bereaksi dengan sampel yang dianalisis. Hal ini memungkinkan kuarsa untuk memberikan hasil yang akurat dan konsisten dalam analisa kuantitatif dengan spektrofotometer vis.

A spektrofotometer is an instrument used for analyzing and measuring the absorbance of light by a substance. It is a part of instrumental analysis and is based on the principle of spectrophotometry. Spectrophotometry involves the measurement of the intensity of light that is absorbed by a sample at different wavelengths. A spectrophotometer is used to measure the absorbance of a sample at specific wavelengths, which can provide information about the concentration or composition of the substance being analyzed. Therefore, a spektrofotometer is the correct answer as it is the instrument used for the analysis described in the question.

When using a cuvette, it is important to insert it into the sample holder with the clear part of the cuvette facing the same direction as the arrow. This ensures that the cuvette is correctly aligned and the measurements are accurate.

The correct answer is 400 - 800 nm. This is because the visible light spectrum ranges from approximately 400 to 800 nm. Spectrophotometers are used to analyze the absorption, transmission, and reflection of light by a sample, and they are commonly used in the visible range of the electromagnetic spectrum. Therefore, the wavelength range of 400 - 800 nm is the most suitable for analysis with a visible spectrophotometer.

The correct answer is Option 3. This option is the one that is used to adjust the wavelength on the genesys 20 spectrophotometer.

It is important to wipe the instrument immediately if there is any spillage to prevent any damage or contamination.

Based on the given information, the correct answer is 5 minutes. The explanation is that before using the visible spectrophotometer, it is recommended to turn it on for a certain period of time. In this case, the recommended time is 5 minutes. This is likely to allow the spectrophotometer to warm up and stabilize, ensuring accurate and reliable measurements.

The given options are all settings that will appear when pressing the utility button, except for the "pengaturan tempat sel" (cell location setting). This suggests that the "pengaturan tempat sel" is not a setting that is accessed through the utility button.

One of the possible causes of the error is closing the sample compartment when turning on the device. This could lead to a build-up of pressure or interference with the internal mechanisms of the device, resulting in an error. It is important to follow the proper procedures and instructions when using any equipment to avoid such errors.