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

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Micrometers Select Micrometers to convert spectra in wavenumbers to micrometers (see the following example). A micrometer equals 1 X 10-6 meter and is the X-axis unit normally used for displaying infrared spectra in wavelength. Micrometers were used more commonly in the past. Convert a spectrum to micrometers if you want to compare it visually with other data in micrometers. 192 Thermo Nicolet
Nanometers Select Nanometers to convert spectra in wavenumbers to nanometers. A nanometer equals 1 X 10-9 meter and is an X-axis unit used for displaying spectra in wavelength. Here is an example: Use nanometers to display near-IR spectra. Convert spectra to special units 1. Select the spectra. 2. Choose Other Conversions from the Process menu. The Other Conversions dialog box appears. 3. Select a conversion from the drop-down list box. OMNIC User’s <strong>Guide</strong> 193
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The information in this publication
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Peak area tool.....................
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Checking spectrometer performance a
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Process............................
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Selecting, editing or creating a re
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How to use this manual This manual
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• If you do not have the DS optio
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Note If you have the DS option, you
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Digital signature information in a
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There are several ways to enter the
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Note Some tutorials are available o
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Note If you are using Windows 2000
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Panes A pane is an area of the spec
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Displaying a list of spectrum title
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Displaying a different spectral reg
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Copying information to the Clipboar
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Note You can select all the display
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Next, hold down the Shift key and c
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Region tool Some OMNIC commands can
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You can position the annotation tex
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You can position the annotation by
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2. Click the Annotate button to the
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The corrected area is bordered by t
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2. Edit the label text if desired.
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Overlaying spectra lets you see sig
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When you hide a stacked spectrum, a
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If a pane containing a spectrum is
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46 Thermo Nicolet
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File Type Extension Comments Spectr
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The settings available in the Y Uni
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If Put Opened Spectrum In New Windo
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3. If the Save As dialog box appear
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2. Choose Save Group from the File
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2. Locate and select the desired fi
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Save a configuration This procedure
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A dialog box appears. 2. Type a use
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Note The Enable OMNIC Log-In comman
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Note If a spectrum has been pasted
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Delete files 1. Choose Delete Files
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When you cut a displayed stacked sp
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Pasting duplicate images of spectra
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Note The options you set using Opti
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File Type Initial Spectra Initial E
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Normalize the spectra of standards
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In the upper-left corner of the dia
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Type Annotation Axis Labels Axis Nu
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Specifying how to print axes The op
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Text Type Annotation Axis Labels Ax
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Note If you have turned off Prompt
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Setting Smart Purge The Smart Purge
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Specifying how to list peaks found
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4. Collect a sample spectrum with n
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To specify or do this... The X-axis
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Turn on Display All Annotation if y
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Item Company Name Spectrum Title Da
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Preventing the overwriting of files
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State Enabled Disabled Hidden Descr
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6. If you disabled or hid the Save
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5. Specify the size of the toolbar
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Note You can create an image for a
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The experiment you select also sets
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Note The experiment you select also
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Note If you are studying samples th
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When deciding whether to use this f
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Titling the experiment Bench featur
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The peak-to-peak intensity is the s
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• It helps prevent infrared energ
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Specifying the beamsplitter type If
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The parameter checks appear when yo
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The individual checks are described
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Fringes result when back reflection
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A beamsplitter, detector, source or
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Type the desired minimum peak-to-pe
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Setting Boxcar N-B* Weak N-B* Mediu
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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 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
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Range of Y values versus X value Pe
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4. If you are not using the search
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Using extended search The Extended
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When you perform the search, the ex
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All the QC libraries and library gr
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Set up a spectral search (The proce
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7. Specify the number of found libr
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5. Specify the spectral regions to
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Search a spectral library 1. Use Li
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If you did not use the search exper
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To print the search expert’s comm
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Color-coded titles of the spectrum
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To print the spectrum and functiona
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You can choose Overlay Spectra from
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Working with libraries Click the Li
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Once a library is created, you can
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3. Click the name of the user libra
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A copy of the spectrum is placed in
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• If you are adding more than one
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3. Click the name of the library. T
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9. Choose Search. The search result
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The kinds of information displayed
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2. Click the Create/Edit Structures
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If you want to print the informatio
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When you are ready to start printin
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You can only add the spectrum to a
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3. If you want to reset the data co
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Follow these general steps to creat
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Type Spectrum Comments Spectrum Cus
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3. Specify the item type by selecti
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5. Choose Preview/Print Report from
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4. If the item type is Spectral Win
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The page number of the currently di
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7. Close the Report Template window
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Adding a report to a notebook Use A
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To view a report notebook, use View
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Searching for text Click the Search
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Express dates on this tab in the fo
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5. To search for reports that conta
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Note When windows are tiled, they m
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atmospheric effects suppressing, 94
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status of, 148 time for, 115, 116,
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detector interface kit, 123 detecto
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finding peaks, 235 fingerprint regi
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special criteria for, 246 spectral
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OMNIC Atlµs default directory, 76
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Process options, 90 Protégé spect
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experiment, 114, 146 default direct
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detector, 127 filter for, 139 for c
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displaying, 14, 20, 39, 95 color fo
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text adding to report template, 297
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x X-axis, 14, 17 display limits, 17
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