In the determination of UV-vis spectrophotometry, the function of reference solution is ( ).
A: Adjust the zero point of the transmittance of the instrument.
B: Absorb the light wave needed in the determination of light.
C: Adjust the intensity of the incident light.
D: Eliminate the influence of all substances other than the substances to be measured such as reagents on incident light.
A: Adjust the zero point of the transmittance of the instrument.
B: Absorb the light wave needed in the determination of light.
C: Adjust the intensity of the incident light.
D: Eliminate the influence of all substances other than the substances to be measured such as reagents on incident light.
举一反三
- The light is too ( ) to read. Please turn on the light.
- In the plan of light layout,Fill Light______. A: We can only use one lamp as Fill Light. B: We can use two lamps as Fill Light. C: We put Fill Light on the place relative to Key Light to illuminate subjects. D: We should lay out Fill Light closer to camera.
- "The light in the office is still on." "Oh, I forgot (turn oft) ______ the light.\
- 1. ______reflector can produce natural and light lights, so we usually use it to fill in light. A: Soft light B: Grey C: Silver D: White
- Magenta absorbs green light and reflects ( ) light. A: Purple B: Red C: Blue D: Green