Hitachi F7000 Instruction Manual

							7.9 
7 - 17 
7.9    Derivative Operation on Spectrum 
 
Click the 
  (derivative) button on the Processing toolbar.    A window 
as in Fig. 7-17 will open. 
(Or select the Derivative Parameters command from the Data menu.) 
 
 
 
Fig. 7-17 
 
 
1 Derivative order 
Set a derivative order. 
Input range:    1 to 4 
2 Smoothing order 
Set a smoothing order. 
Input range:    2 to 4 
3 Number of points 
Set the number of data points to be used in calculation. 
Input range:    5 to 101, Initial value:    15 
4 Overlay derivative 
Spectra before and after derivative operation are overlaid for 
display.    Note that the value on the Y axis is not the one after 
derivative operation. 
5 Calculate 
This button executes derivative operation. 
 
Fro returning to the original status (before calculation), click the 
 
(reset) button. 
 
 
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							7.10    Overlaid Display of Spectra 
7 - 18 
7.10    Overlaid Display of Spectra 
 
This function is usable for comparison of two or more spectra and other 
purposes. 
The following three methods are available. 
 
 
This method is available when two or more spectrum windows are 
already displayed. 
 
(1)  Select the Overlay command from the Data menu. 
 
(2)  A dialog box as in Fig. 7-18 will appear. 
The dialog box indicates a sample name for the presently 
displayed spectrum. 
 
 
 
Fig. 7-18 
 
 
(3) Click From the windows.    A window as in Fig. 7-19 will appear.   
(Refer to ①  in Fig. 7-18.) 
A list of the sample names for the presently displayed spectra is 
indicated in the left box, and a list of the overlaid sample names in 
the right box. 
 
 
 
Fig. 7-19 
 
7.10.1 Insertion from 
Window 
 
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							7.10.1 
7 - 19 
(4)  Select a sample name from the left box.    The selected sample 
name will be highlighted in blue.    (Refer to ②  in Fig. 7-20.) 
 
(5) Click the Insert >> button.  (Refer to ③  in Fig. 7-20.) 
 
 
 
Fig. 7-20 
 
 
(6)  The selected sample name will be added as shown in Fig. 7-21.   
(Refer to ④  in Fig. 7-21.) 
 
(7) Click OK.  (Refer to ⑤  in Fig. 7-21.) 
 
 
 
Fig. 7-21 
 
 
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							7.10    Overlaid Display of Spectra 
7 - 20 
(8)  Two spectra will be overlaid on the data processing window.     
At the same time, a dialog box as in Fig. 7-22 will open.     
Click Close.  (Refer to ⑥  in Fig. 7-22.) 
 
 
 
Fig. 7-22 
 
 
(9)  To delete a spectrum, click the corresponding sample name in 
the above Spectra list.    (Refer to ⑦ in Fig. 7-22.)  When the 
clicked sample name is highlighted in blue, the Delete button 
becomes active.  Click the Delete button.  (Refer to ⑧ in Fig. 
7-22.) 
 
 
 
This method overlays spectra by reading them from the already saved 
files. 
 
(1)  Select the Overlay command from the Data menu. 
 
(2)  A dialog box as in Fig. 7-23 will appear. 
 
 
 
Fig. 7-23 
 
 
(3) Click From the files in Fig. 7-23.    (Refer to ① in Fig. 7-23).   
A window as in Fig. 7-24 will open. 
 
7.10.2 Insertion from 
File 
 
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							7.10.2 
7 - 21 
(4)  Select a file name for overlaid display and click Open.  (Refer to 
②  in Fig. 7-24.) 
 
 
 
Fig. 7-24 
 
 
(5)  Two spectra will be overlaid on the data processing window.     
At the same time, a dialog box as in Fig. 7-25 will appear.     
Click the Close button.  (Refer to ③  in Fig. 7-25.) 
 
 
 
Fig. 7-25 
 
 
(6)  To delete a spectrum, click the corresponding sample name in 
the Spectra list.    (Refer to ④ in Fig. 7-25.)    When the clicked 
sample name is highlighted in blue, the Delete button becomes 
active.  Click the Delete button.  (Refer to ⑤  in Fig. 7-25.) 
 
 
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							7.10    Overlaid Display of Spectra 
7 - 22 
This method is available when two kinds of spectrum windows (already 
processed windows) are displayed on the screen. 
 
 
 
Fig. 7-26 
 
 
(1)  Drag the blue frame of a spectrum in the following procedure.   
(Refer to ①  in Fig. 7-26.) 
Move the arrow mouse pointer to the blue frame. 
Click the left button of the mouse. 
The mouse pointer will change to 
. 
 
(2)  While holding down the left mouse button, bring the mouse 
pointer onto a spectrum to be overlaid.    (Refer to ② in Fig.  
7-26).    When the mouse pointer changes as shown in Fig. 7-27, 
drop the mouse (release the left mouse button). 
 
 
 
 
 
Fig. 7-27 
 
Open files as in 7.10.3, click a spectrum to be overlaid and press Ctrl + 
C on the keyboard or select the Copy command from the Edit menu.   
Click the spectrum on which overlaying is desired and paste the first 
spectrum by Ctrl + V to complete overlaying. 
 
 
7.10.3 Direct Drag-
and-Drop 
Operation 
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							7.10.4 
7 - 23 
This method allows you to display only the spectra selected from 
overlaid ones. 
 
(1) Click the 
  (display spectra) button on the Spectrum toolbar.     
A window as in Fig. 7-28 will appear. 
 
(2)  Select a desired sample name from the Visible Spectra list.     
The selected sample name will be highlighted in blue.    (Refer to 
①  in Fig. 7-28.) 
(Multiple spectra are selectable by clicking the left button of the 
mouse on the desired sample names while holding down the Shift 
key.) 
 
(3) Click the OK button.  (Refer to ②  in Fig. 7-28.) 
 
(4)  Only the selected spectra will be displayed on the spectrum   
window.    In this example, spectrum No. 4 will be displayed.     
This spectrum is not printed, but the sample name, analysis 
method, etc. are printed. 
 
 
 
Fig. 7-28 
 
 
7.10.4 Selection of 
Spectra from 
Overlay 
Window 
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							7.11    Arithmetic Operation between Spectra 
7 - 24 
7.11    Arithmetic Operation between Spectra 
 
Shown here is an example of obtaining the difference between two 
overlaid spectra. 
Click the 
  (spectral calculation) button on the Processing toolbar.   
The Spectral Arithmetic window will open as shown in Fig. 7-29. 
(Or select the Spectral Arithmetic command from the Data menu.) 
 
 
 
 
Fig. 7-29 
 
 
(1)  The sample names for the files opened in the window (file names 
in parentheses) are listed.    From this list, select a file for 
arithmetic operation.  (Refer to ① in Fig. 7-29.) 
 
(2)  The spectrum selected in (1) is displayed.    (Refer to ② in Fig.  
7-29.) 
 
(3)  Set a factor for the spectrum selected in (1).    (Refer to ③ in Fig.  
7-29.) 
 
(4)  For multiplying the spectrum by the factor, click Calculate.   
(Refer to ④  in Fig. 7-29.) 
 
(5)  For arithmetic operation between two spectra, put a check mark 
in the Spectra Arithmetic check box.    (Refer to ⑤  in Fig. 7-29.) 
 
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							7.11 
7 - 25 
(6)  The sample names for the files opened in the window (file names 
in parentheses) are listed.    From this list, select another file for 
arithmetic operation.  (Refer to ⑥  in Fig. 7-30.) 
 
(7)  The spectrum selected in (6) is displayed.    (Refer to ⑦ in Fig.  
7-30.) 
 
 
 
Fig. 7-30 
 
 
(8)  Set a factor for the spectrum selected in (6).    (Refer to ⑧ in Fig. 
 7-30.) 
 
(9)  Select a mathematical operator for the two spectra.    (Refer to ⑨ 
in Fig. 7-30.) 
+: Addition, -: Subtraction, *: Multiplication, /: Division 
 
(10)  After setting of a mathematical operator, click Calculate.   
(Refer to ⑩  in Fig. 7-30.) 
 
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							7.11    Arithmetic Operation between Spectra 
7 - 26 
(11)  The result of arithmetic operation is displayed as shown in Fig.   
7-31.  (Refer to ⑪  in Fig. 7-31.) 
 
 
 
Fig. 7-31    After Arithmetic Operation 
 
 
(12) Click Save As.    The result of calculation can be saved in file.   
(Refer to ⑫  in Fig. 7-31.) 
 
 
 
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