Thermonicolet Omnic Software User's Guide 6.1 (PDF) - Charles E ...

More documents

Recommendations

Info

Checking spectrometer performance at the start of data collection..... 118 Entering an experiment description..................................................... 118 File handling........................................................................................ 118 Background handling........................................................................... 119 Titling the experiment ......................................................................... 120 Bench features .......................................................................................... 120 Using the live display .......................................................................... 121 Setting the gain .................................................................................... 123 Specifying the mirror velocity............................................................. 123 Setting the aperture size....................................................................... 123 Specifying the sample location............................................................ 125 Specifying the detector type ................................................................ 125 Specifying the beamsplitter type ......................................................... 126 Specifying the source type................................................................... 126 Specifying the accessory...................................................................... 126 Specifying the window material .......................................................... 126 Using a sample shuttle......................................................................... 126 Specifying the spectral range............................................................... 127 Quality checks .......................................................................................... 127 What sensitivity setting should I use?.................................................. 130 Checking for the presence of peaks..................................................... 130 Checking for totally absorbing peaks .................................................. 130 Checking for fringes or channeling ..................................................... 131 Checking for derivative peaks ............................................................. 132 Checking the baseline.......................................................................... 133 Checking for carbon dioxide ............................................................... 133 Checking for water vapor .................................................................... 133 Checking the spectral range................................................................. 133 Checking the apodization .................................................................... 134 Checking the resolution ....................................................................... 134 Checking the background for contamination....................................... 134 Checking for detector icing ................................................................. 134 Checking the background for carbon dioxide or water ....................... 135 Checking the background for an accessory ......................................... 135 Checking the interferogram amplitude ................................................ 135 Comparing the interferogram amplitude with the noise level ............. 135 Advanced parameters................................................................................ 136 Specifying the number of levels of zero filling ................................... 137 Selecting the apodization type............................................................. 137 Specifying the sample spacing............................................................. 138 Specifying the phase correction........................................................... 139 Specifying the cutoff frequency of the low pass filter......................... 139 Specifying the cutoff frequency of the high pass filter........................ 140 Collecting single-sided interferograms................................................ 140 Resetting the spectrometer at the start of data collection..................... 141 Starting data collection with an external trigger.................................. 141 Diagnostic and alignment features............................................................ 141 Checking spectrometer components .................................................... 142 Checking the desiccant ........................................................................ 142 Aligning the spectrometer.................................................................... 143 Configuring the system........................................................................ 143 Matching the parameter settings of a spectrum.............................................. 146
Displaying the optical layout ..........................................................................147 Collecting a sample spectrum .........................................................................148 Viewing the progress of the collection......................................................148 Viewing information about data collection problems ...............................148 Viewing the resolution of the data.............................................................149 Viewing the age of the background...........................................................149 Displaying a different spectral region .......................................................149 Displaying the peak intensity or the noise in a spectral region .................149 What happens during collection? ..............................................................150 Pausing and continuing data collection .....................................................150 Collecting additional scans........................................................................151 Collecting a background spectrum .................................................................154 When to collect a new background spectrum............................................155 Viewing the progress.................................................................................155 Viewing the resolution ..............................................................................155 Viewing the age of the background...........................................................156 Displaying a different spectral region .......................................................156 Displaying the peak intensity or the noise in a spectral region .................156 Viewing information about data collection problems ...............................156 The current background ............................................................................156 Pausing and continuing data collection .....................................................157 Collecting additional background scans....................................................157 Displaying the current background spectrum .................................................158 Displaying the spectral quality reference spectrum ........................................159 Assigning a new spectral quality reference spectrum.....................................159 Using the advanced diagnostics......................................................................160 View .....................................................................................................................161 Undoing display limit changes .......................................................................161 Redoing display limit changes........................................................................162 Setting the display parameters ........................................................................162 Spectral View ............................................................................................164 Displaying sampling information.........................................................164 Displaying annotations.........................................................................165 Displaying the axes ..............................................................................165 Displaying a grid..................................................................................165 Displaying overlaid titles .....................................................................166 Specifying how to display annotations......................................................166 Selecting an X-axis format ........................................................................168 Specifying how to stack spectra ................................................................171 Specifying the sampling information to display........................................172 Selecting a color for the currently selected spectra ...................................173 Stacking or overlaying spectra........................................................................173 Hiding spectra.................................................................................................175 Displaying spectra full scale ...........................................................................175 Displaying spectra using the same Y-axis ......................................................177 Matching the Y scale of a spectrum................................................................177 Displaying spectra vertically offset ................................................................178 Setting the display limits.................................................................................180 Displaying spectra full scale automatically ....................................................181 Rolling and zooming spectra ..........................................................................182 Displaying and using a toolbar .......................................................................184
Page 2 and 3: The information in this publication
Page 4 and 5: Peak area tool.....................
Page 8 and 9: Process............................
Page 10 and 11: Selecting, editing or creating a re
Page 12 and 13: How to use this manual This manual
Page 14 and 15: • If you do not have the DS optio
Page 16 and 17: Note If you have the DS option, you
Page 18 and 19: Digital signature information in a
Page 20 and 21: There are several ways to enter the
Page 22 and 23: Note Some tutorials are available o
Page 24 and 25: Note If you are using Windows 2000
Page 26 and 27: Panes A pane is an area of the spec
Page 28 and 29: Displaying a list of spectrum title
Page 30 and 31: Displaying a different spectral reg
Page 32 and 33: Copying information to the Clipboar
Page 34 and 35: Note You can select all the display
Page 36 and 37: Next, hold down the Shift key and c
Page 38 and 39: Region tool Some OMNIC commands can
Page 40 and 41: You can position the annotation tex
Page 42 and 43: You can position the annotation by
Page 44 and 45: 2. Click the Annotate button to the
Page 46 and 47: The corrected area is bordered by t
Page 48 and 49: 2. Edit the label text if desired.
Page 50 and 51: Overlaying spectra lets you see sig
Page 52 and 53: When you hide a stacked spectrum, a
Page 54 and 55: If a pane containing a spectrum is
Page 56 and 57:
46 Thermo Nicolet
Page 58 and 59:
File Type Extension Comments Spectr
Page 60 and 61:
The settings available in the Y Uni
Page 62 and 63:
If Put Opened Spectrum In New Windo
Page 64 and 65:
3. If the Save As dialog box appear
Page 66 and 67:
2. Choose Save Group from the File
Page 68 and 69:
2. Locate and select the desired fi
Page 70 and 71:
Save a configuration This procedure
Page 72 and 73:
A dialog box appears. 2. Type a use
Page 74 and 75:
Note The Enable OMNIC Log-In comman
Page 76 and 77:
Note If a spectrum has been pasted
Page 78 and 79:
Delete files 1. Choose Delete Files
Page 80 and 81:
When you cut a displayed stacked sp
Page 82 and 83:
Pasting duplicate images of spectra
Page 84 and 85:
Note The options you set using Opti
Page 86 and 87:
File Type Initial Spectra Initial E
Page 88 and 89:
Normalize the spectra of standards
Page 90 and 91:
In the upper-left corner of the dia
Page 92 and 93:
Type Annotation Axis Labels Axis Nu
Page 94 and 95:
Specifying how to print axes The op
Page 96 and 97:
Text Type Annotation Axis Labels Ax
Page 98 and 99:
Note If you have turned off Prompt
Page 100 and 101:
Setting Smart Purge The Smart Purge
Page 102 and 103:
Specifying how to list peaks found
Page 104 and 105:
4. Collect a sample spectrum with n
Page 106 and 107:
To specify or do this... The X-axis
Page 108 and 109:
Turn on Display All Annotation if y
Page 110 and 111:
Item Company Name Spectrum Title Da
Page 112 and 113:
Preventing the overwriting of files
Page 114 and 115:
State Enabled Disabled Hidden Descr
Page 116 and 117:
6. If you disabled or hid the Save
Page 118 and 119:
5. Specify the size of the toolbar
Page 120 and 121:
Note You can create an image for a
Page 122 and 123:
The experiment you select also sets
Page 124 and 125:
Note The experiment you select also
Page 126 and 127:
Note If you are studying samples th
Page 128 and 129:
When deciding whether to use this f
Page 130 and 131:
Titling the experiment Bench featur
Page 132 and 133:
The peak-to-peak intensity is the s
Page 134 and 135:
• It helps prevent infrared energ
Page 136 and 137:
Specifying the beamsplitter type If
Page 138 and 139:
The parameter checks appear when yo
Page 140 and 141:
The individual checks are described
Page 142 and 143:
Fringes result when back reflection
Page 144 and 145:
A beamsplitter, detector, source or
Page 146 and 147:
Type the desired minimum peak-to-pe
Page 148 and 149:
Setting Boxcar N-B* Weak N-B* Mediu
Page 150 and 151:
As an example, for a standard DTGS
Page 152 and 153:
If you have installed a Smart Acces
Page 154 and 155:
• Install a 32-bit version of OMN
Page 156 and 157:
• To save the settings in the cur
Page 158 and 159:
The positive settings move your vie
Page 160 and 161:
What happens during collection? The
Page 162 and 163:
3. Choose Collect Sample from the C
Page 164 and 165:
Note To store the spectrum on the h
Page 166 and 167:
Viewing the age of the background D
Page 168 and 169:
If Preview Data Collection is turne
Page 170 and 171:
If at any time the system condition
Page 172 and 173:
Undo a display limit change Choose
Page 174 and 175:
To specify this or do this... The n
Page 176 and 177:
To remove the grid from a spectral
Page 178 and 179:
Note You can display annotations ve
Page 180 and 181:
This format is suitable for high re
Page 182 and 183:
Specifying the sampling information
Page 184 and 185:
Stacked spectra Stacking spectra is
Page 186 and 187:
Full Scale brings the highest data
Page 188 and 189:
Match the Y-axis scale of a spectru
Page 190 and 191:
Display spectra vertically offset 1
Page 192 and 193:
Display spectra full scale automati
Page 194 and 195:
Displaying and using a toolbar Use
Page 196 and 197:
Converting spectra to absorbance Us
Page 198 and 199:
The units are described in the next
Page 200 and 201:
The photoacoustic value (PAS) at a
Page 202 and 203:
Micrometers Select Micrometers to c
Page 204 and 205:
4. Choose OK. • If you selected K
Page 206 and 207:
• To change the final format. You
Page 208 and 209:
What is a baseline? A baseline cons
Page 210 and 211:
Important Be careful not to introdu
Page 212 and 213:
The X and Y values of the point app
Page 214 and 215:
8. When you are finished correcting
Page 216 and 217:
Before searching an ATR spectrum ag
Page 218 and 219:
• A spectrum includes the region
Page 220 and 221:
Replacing a spectral region with a
Page 222 and 223:
Subtracting spectra Use Subtract in
Page 224 and 225:
2. Choose Subtract from the Process
Page 226 and 227:
Subtracting a component or contamin
Page 228 and 229:
Note If negative peaks appear in th
Page 230 and 231:
3. Select the desired number of smo
Page 232 and 233:
Converting spectra to their first o
Page 234 and 235:
Multiplying a spectrum by a number
Page 236 and 237:
Symbol Meaning Examples / Divide. A
Page 238 and 239:
• To change the factor using the
Page 240 and 241:
Here is the normalized spectrum: In
Page 242 and 243:
Normalize the scale of spectra 1. S
Page 244 and 245:
Example libraries The following sec
Page 246 and 247:
Click the Print button in the Find
Page 248 and 249:
6. To display or remove the Y-axis
Page 250 and 251:
3. Choose Average from the Process
Page 252 and 253:
Range of Y values versus X value Pe
Page 254 and 255:
4. If you are not using the search
Page 256 and 257:
Using extended search The Extended
Page 258 and 259:
When you perform the search, the ex
Page 260 and 261:
All the QC libraries and library gr
Page 262 and 263:
Set up a spectral search (The proce
Page 264 and 265:
7. Specify the number of found libr
Page 266 and 267:
5. Specify the spectral regions to
Page 268 and 269:
Search a spectral library 1. Use Li
Page 270 and 271:
If you did not use the search exper
Page 272 and 273:
To print the search expert’s comm
Page 274 and 275:
Color-coded titles of the spectrum
Page 276 and 277:
To print the spectrum and functiona
Page 278 and 279:
You can choose Overlay Spectra from
Page 280 and 281:
Working with libraries Click the Li
Page 282 and 283:
Once a library is created, you can
Page 284 and 285:
3. Click the name of the user libra
Page 286 and 287:
A copy of the spectrum is placed in
Page 288 and 289:
• If you are adding more than one
Page 290 and 291:
3. Click the name of the library. T
Page 292 and 293:
9. Choose Search. The search result
Page 294 and 295:
The kinds of information displayed
Page 296 and 297:
2. Click the Create/Edit Structures
Page 298 and 299:
If you want to print the informatio
Page 300 and 301:
When you are ready to start printin
Page 302 and 303:
You can only add the spectrum to a
Page 304 and 305:
3. If you want to reset the data co
Page 306 and 307:
Follow these general steps to creat
Page 308 and 309:
Type Spectrum Comments Spectrum Cus
Page 310 and 311:
3. Specify the item type by selecti
Page 312 and 313:
5. Choose Preview/Print Report from
Page 314 and 315:
4. If the item type is Spectral Win
Page 316 and 317:
The page number of the currently di
Page 318 and 319:
7. Close the Report Template window
Page 320 and 321:
Adding a report to a notebook Use A
Page 322 and 323:
To view a report notebook, use View
Page 324 and 325:
Searching for text Click the Search
Page 326 and 327:
Express dates on this tab in the fo
Page 328 and 329:
5. To search for reports that conta
Page 330 and 331:
Note When windows are tiled, they m
Page 332 and 333:
atmospheric effects suppressing, 94
Page 334 and 335:
status of, 148 time for, 115, 116,
Page 336 and 337:
detector interface kit, 123 detecto
Page 338 and 339:
finding peaks, 235 fingerprint regi
Page 340 and 341:
special criteria for, 246 spectral
Page 342 and 343:
OMNIC Atlµs default directory, 76
Page 344 and 345:
Process options, 90 Protégé spect
Page 346 and 347:
experiment, 114, 146 default direct
Page 348 and 349:
detector, 127 filter for, 139 for c
Page 350 and 351:
displaying, 14, 20, 39, 95 color fo
Page 352 and 353:
text adding to report template, 297
Page 354:
x X-axis, 14, 17 display limits, 17
show all

Thermonicolet Omnic Software User's Guide 6.1 (PDF) - Charles E ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?