FAQ
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How to use spectral data
Q1. How can I download the spectral data?

closeA1. Please download as follows:
(1) Right click on the spectral image and choose to copy it.
(2) Open applications software. (Word, Powerpoint, Excel .etc)
(3) Select "Edit" and "Paste Special" from the menu.
(4) In the "Paste Special" dialog, select "Device Independent Bitmap(DIB)" and click "OK".

Q2. When I copy the spectral image and paste it to applications software, the "Forbidden image" is shown. How can I avoid this?

closeA2. Please download as follows:
(1) Right click on the spectral image and choose to copy it.
(2) Open applications software. (Word, Powerpoint, Excel .etc)
(3) Select "Edit" and "Paste Special" from the menu.
(4) In the "Paste Special" dialog, select "Device Independent Bitmap(DIB)" and click "OK".

Q3. When I access to the spectral image, "Forbidden image" is often shown. How can I avoid this?

closeA3. Please access to SDBS again for a while. If you still have trouble, contact us by the [contact] form.

Q4. How many spectra and/ or compound information can I download a day?

closeA4. You can download a maximum of 50 spectra and/ or compound information a day.

Q5. How should I make citations for SDBS?

closeA5. Please put a reference in the bibliography in your paper as follows:
SDBSWeb : http://riodb01.ibase.aist.go.jp/sdbs/ (National Institute of Advanced Industrial Science and Technology,date of access)

Q6. Can I use the spectra and/ or compound information for the class notes, textbooks, or scientific publications?

closeA6. Please download spectra freely, unless you use the spectral data for commercial and/or profit purposes. Please do not forget to make citations in the following way:
Please put a reference in the bibliography in your paper as follows:
SDBSWeb: http://riodb01.ibase.aist.go.jp/sdbs/ (National Institute of Advanced Industrial Science and Technology,date of access)

Q7. Can I use the spectra and /or compound information in commercially profitable publication?

closeA7. Please contact us by the [contact] form.

Q8. Can you provide spectra as digital data?

closeA8. We basically do not provide the spectral data in such format.


System requirements
Q1. Although I clicked the "I agree the disclaimer and use SDBS." or disclaimer button, I cannot proceed to the search page. How should I do?

closeA1. Please click the disclaimer button once again. If you still have trouble, please check the following settings on your browser.
(1) Is old cash deleted?
(2) Are the cookie settings active?
(3) Are Javascript settings active?

In addition, the screen vary according to browsers and their versions (Internet Explorer etc.) of PC you use.

If you still have trouble, contact us by the [contact] form.

Q2. When I clicked the "I agree the disclaimer and use SDBS." button, and proceeded to search page. But when I clicked the "search " button, the system made me return to the toppage. How should I do?

closeA2. Please click the disclaimer button once again. If you still have trouble, please check the following settings on your browser.
(1) Is old cash deleted?
(2) Are the cookie settings active?
(3) Are Javascript settings active?

In addition, the screen vary according to browsers and their versions (Internet Explorer etc.) of PC you use.

If you still have trouble, contact us by the [contact] form.


Others
Q1. Can I provide spectral data or chemical products to SDBS?

closeA1. We do not accept spectral data or chemical products from outside.

Q2. Do you sell chemical products?

closeA2. We do not sell chemical products.


IR Spectra
Q1. What is the thickness of IR sample?

closeA1. From the volume and area of most liquid samples between two KBr disks, the typical thickness would be 150 micro meters. However, the sample thickness greatly depends on the degree of absorbance because we vary the thickness in order to achieve optimum transmittance.
For the KBr measurements, we first mix typical 1 to 2 mg sample in KBr powder and prepare a KBr disk of a 1 cm diameter and 0.8 mm thickness.

Q2. What do the numbers in the table mean?

closeA2. The table shows sets of transmittance at each wavenumber for significant IR peaks. For example, the combination "1195 5" means the transmittance is 5% at the wavenumber of 1195 cm-1.

figure1

Q3. Can you indicate the functional groups for corresponding peaks?

closeA3. We do not provide any assignment information for IR peaks in SDBS.

Q4. What do the vertical and horizontal axes mean?

closeA4. The vertical and horizontal axes are for transmittance in % and wavenumber, respectively.
Transmittance T is the ratio between the intensity of incident light I0 and that of transmitted light I i.e.
T= I
I0

Absorbance A is given as the common logarithm of T:
A=−Log10T

The wavenumber ν is the number of the waves of light in 1 cm. The number is the reciprocal of wavelength λ in cm:
ν= 1
λ





(c) National Institute of Advanced Industrial Science and Technology (AIST)