NOTE
: For using organic solvents as mobile phase
1. When using organic solvents, be careful about UV
cut off wavelength.
UV cut off wavelength:
Light cannot be transmitted in the range shorter
than this wavelength.
e.g) Cut off wavelength of chloroform is 245 nm.
Chloroform cannot be used in the range shorter
than 245 nm (e.g. 210 nm).
2. Boiling point of mobile phase
Solvents of low boiling point cannot be used as
mobile phase. Use solvents whose boiling point is
55
°
C or higher.
Solvents of low boiling point are not only dangerous
but also generate bubbles when sucked by pump
so that normal pumping will be impossible.
3. When performing high sensitivity analysis with UV
detector, use solvents which absorb especially
small amount of UV light.
Since special grade reagents such as methanol
and acetonitrile generally used absorb the shorter
wavelengths a lot, use reagents for liquid
chromatograph commercially available.
Condition
Acetonitrile (special grade)
Photometer : U-3000
Slit
: 2 nm
Blank :
Air
Acetonitrile (for HPLC)
Fig. 3-7 Absorption Spectra of Organic Solvents
3 - 69
Содержание CHROMASTER 5160
Страница 54: ...3 17 Fig 3 3b Connecting with the Chromaster 5260 Autosampler Injection valve Syringe valve Port4 ...
Страница 165: ...INDEX 3 U UI Pad 2 6 UTLTY 2 7 3 18 W Wiring covers 2 4 APPENDIX 1 19 Z Zero pressure calibration 3 18 ...
Страница 190: ...APPENDIX 3 2 Log book Means the information containing records of instrument operating conditions ...
Страница 221: ...3 1 Replacement Procedure b Replace the fuse with a new one and then attach the fuse holder by pressing it 3 2 ...
Страница 244: ......
Страница 406: ......
Страница 433: ...SAFETY 10 SAFETY SUMMARY WARNING and CAUTION Labels on Instrument 7 Before Turning on Xenon Lamp Front View ...
Страница 999: ...Retaining screws Fixing bracket Appended Fig 1 5 Removal of Fixing Brackets APPENDIX 1 13 ...
Страница 1016: ......
Страница 1022: ...Sample rack A component part on which a sample is set Logbook A historical record of instrument operation APPENDIX 3 2 ...