Table of Contents 8
1-1 Waters 996 PDA Detector Dimensions.......................................... 15
1-2 Detector Rear Panel ...................................................................... 16
1-3 Example of IEEE-488 Cable Connections..................................... 17
1-4 Locating the IEEE-488 Address Switches..................................... 18
1-5 Analog Output Terminals ............................................................... 20
1-6 Event Input/Output Terminal Strip.................................................. 22
1-7 Compression Screw Assembly ...................................................... 24
1-8 996 Detector Indicator Lights......................................................... 25
2-1 996 PDA Detector Indicator Lights ................................................ 28
3-1 Flow Cell Access Door................................................................... 35
3-2 Removing the Flow Cell Assembly ................................................ 35
3-3 Flow Cell and Fluidic Connections Assemblies ............................. 36
3-4 Disassembling the Flow Cell.......................................................... 37
3-5 Lamp Access Door ........................................................................ 40
3-6 Lamp Usage Indicator.................................................................... 40
3-7 Lamp Power Cord and Mounting Screws....................................... 42
3-8 Fuse Block..................................................................................... 43
4-1 Optics Assembly Light Path........................................................... 45
4-2 Benzene Spectrum at 1.2 nm Resolution ...................................... 47
4-3 Photodiodes Discharged by Light.................................................. 48
4-4 Absorbance as a Function of Concentration.................................. 51
5-1 Comparing Spectra of Two Compounds ........................................ 55
5-2 Plotting Vectors for Two Spectra .................................................... 56
5-3 Spectra with a Large Spectral Contrast Angle............................... 58
5-4 Spectra with a Small Spectral Contrast Angle............................... 59
5-5 Absorbance Spectra of a Compound at Two Concentrations ........ 60
5-6 Effects of pH and Solvent Concentration on the Absorbance
Spectrum of
p
-Aminobenzoic Acid................................................. 62
List of Figures