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Gerry Downey (downey)
Member
Username: downey

Post Number: 13
Registered: 2-2001
Posted on Friday, March 15, 2013 - 10:19 am:   

Thanks to all who responded - I now have what I need. The availability of the Norris spectra to members of ICNIRS is a real benefit - I found the citrate spectrum in there together with a lot of other great stuff.
The Google search was my first attempt and I got much the same output as you did Howard. Trawling through them there is only really 1 reference to the citrate NIR spectrum and you require a journal subscription to get access to it. Hence this thread - and a result within 2 hours!!
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Howard Mark (hlmark)
Senior Member
Username: hlmark

Post Number: 527
Registered: 9-2001
Posted on Friday, March 15, 2013 - 10:15 am:   

Good point, Tony. No, I didn't mean to imply that we shouldn't ask the group for help when we need it. And as you point out, Google results are selected completely uncritically, and like anything else on the I-net you have to watch out for misinformation and erroneous information, too.

On the other hand, I've gotten somewhat into a habit (and I'm not sure if it's a good habit or a bad one) of going to Google early on, instead of using it as a last resort, when I need to look up something obscure. F'rinstance, I recently had to get information about various different kinds of spectroscopy other than NIR. Now I have a pretty good NIR library myself, but for other types of spectroscopy it's sketchy, at best. Now, how much could I / should I have bothered everybody and wasted their time, for that? I don't know. But a machine, at least, doesn't care if you waste it's time. And when the question isn't as specific as "sodium citrate" there could be a lot of that going around!

So as I said, I've gotten into a habit to do that. Maybe I need to start paying more attention to the "human element" in science though!

\o/
/_\
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Tony Davies (td)
Moderator
Username: td

Post Number: 302
Registered: 1-2001
Posted on Friday, March 15, 2013 - 9:27 am:   

Howard,

You seem to be suggesting that people shouldn't ask their friends via the Forum. I found the answer much faster by taking a book off my shelf and looking it up! There is a lot of IR garbage in your Google results and it doesn't improve much if you add NIR. I think the Forum is the better first choice for finding NIR knowledge.

I would also like to remind the community that there is a search utility for this Forum.

Best wishes,

Tony
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Pierre Dardenne (dardenne)
Senior Member
Username: dardenne

Post Number: 79
Registered: 3-2002
Posted on Friday, March 15, 2013 - 8:56 am:   

Hi,

Norris data set (>400 spectra) is available for the ICNIRS members from http://icnirs.org/ Documents Data sets.

Pierre
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Howard Mark (hlmark)
Senior Member
Username: hlmark

Post Number: 526
Registered: 9-2001
Posted on Friday, March 15, 2013 - 7:51 am:   

Gerry - you forget that the Internet knows EVERYTHING. Results from one page of Google search for "Spectrum of Sodium Citrate":

sodium citrate - MFA Boston: Material Recordcameo.mfa.org � cameo � browse materials � browse resultsCached
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Jan 20, 2009 � IR spectrum of sodium citrate. Transmission spectrum. Sample prepared on zinc selenide crystal. Credit: Infrared Spectroscopy Lab, Analytical ...
Figure 2. Near-infrared spectrum of sodium citrate dihydrate ...www.medicinescomplete.com � ... � S � Sodium Citrate DihydrateYou +1'd this publicly. UndoAdvanced Tribology - Page 500 - Google Books Resultbooks.google.com/books?isbn=3642036538
Jianbin Luo, Yonggang Meng, Tianmin Shao - 2010 - Engineering
0.6 0.0 200 300 400 500 600 700 0.1 0.2 0.3 0.4 0.5 Wavelength / nm Fig.2 UV-vis spectrum of sodium citrate-protected silver nanoparticles Fig.3 The radius ...pH-spectrum of Sodium citrate dihydrate - Theoprax, Researchwww.theoprax-research.com/fcitrS.htmlCached - Similar
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pH-Spectrum of. Sodium citrate dihydrate. recorded by Dr. G. Mermigidis. Experimental: System CS05 - (0.5 mmol/L Sodium Citrate / dist. water). Results: System ...
[PDF]
3. spectrophotometric estimation of acelofenac by using ... - IJPPRijppronline.in/journal/April_2011_Volume-2_Issue-2-articleNo-3.pdfYou +1'd this publicly. Undo
File Format: PDF/Adobe Acrobat - Quick View
2.00 alcohol. CH2 2.84. 1.37 methylene. 1.07 1 alpha -C=O. 0.15 1 beta -O. 0.29 1 beta -C=O. -0.04 1 beta -C. 0. 1. 2. PPM. (a) NMR spectrum of Sodium Citrate.
Full Textijppronline.in/index.php?option=com_content&view...Cached
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Mass Spectrum Of Sodium Citrate and Acelofenac. C27H26NO6. – 620.125. CHO2. – 44.9977. C26H24NO16. – 606.11.
Sodium Citrate Dihydrate for Handbook of Pharmaceutical ... - Scribdwww.scribd.com/doc/112505128/411/Sodium-Citrate-DihydrateYou +1'd this publicly. Undo
Nov 8, 2012 � Figure 1: Near-infrared spectrum of sodium citrate dihydrate measured by reflectance. S. 642 Sodium Citrate Dihydrate. Download or Print ...
Optical Properties of Nanostructured Random Media - Page 161 - Google Books Resultbooks.google.com/books?isbn=3540420312
Vladimir M. Shalaev - 2002 - Science
(a) Emission spectrum of the composite and Raman Stokes spectrum of sodium citrate (inset), (b) Stokes sides of the spectra with respect to //o, 2vo, and :5i/o ...Anionic Surfactants: Analytical Chemistry, Second Edition, - Page 153 - Google Books Resultbooks.google.com/books?isbn=0824701666
John Cross - 1998 - Technology & Engineering
14 IR and Raman spectrum of sodium citrate (x-axis is in cm�'). FIG. 15 IR and Raman spectrum of sodium carbonate (x-axis. Infrared and Raman Spectroscopy ...Fabrication and Nano-Tribological Behaviors of PDDA/Ag NPs ...link.springer.com/content/pdf/10.1007/978-3-642-03653-8_157You +1'd this publicly. Undo
Fig.2 UV-vis spectrum of sodium citrate-protected silver nanoparticles. Fig.3 The radius distribution of sodium citrate-protected silver nanoparticles. 2.2.

\o/
/_\
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Tony Davies (td)
Moderator
Username: td

Post Number: 301
Registered: 1-2001
Posted on Friday, March 15, 2013 - 7:12 am:   

Hi Gerry,

I'm sure you must have a spectrum of sodium citrate - it's spectrum 151 in Williams and Norris (both editions).

Best wishes,

Tony
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Gabi Levin (gabiruth)
Senior Member
Username: gabiruth

Post Number: 87
Registered: 5-2009
Posted on Friday, March 15, 2013 - 6:19 am:   

Gerry,

I tried to post a spectrum for lecitin - whatever I do I exceed 100K file - and I was going to post 1.2 Mb file. Anyway, if you write to me at [email protected], or for that matter I invite everyone to write to me - I will send the complete file.

Gabi Levin
Brimrose
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Gerry Downey (downey)
Member
Username: downey

Post Number: 12
Registered: 2-2001
Posted on Friday, March 15, 2013 - 5:03 am:   

I was wondering if anyone out there could supply me with or direct me to a source of NIR spectra of (1) sodium (or potassium) citrate and (1)lecithin.

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