Timothy D. Huang

7 Questions 24 Answers 0 Followers

Questions related from Timothy D. Huang

Will Raman Spectra of the same specimen under different Laser wavelength yield different results?

I just encountered a very puzzling Raman spectroscopy issue. I have the same specimen measured at the same spot. One used 735nm laser, and the other 532nm. As it can be seen clearly from the...

19 August 2021 9,629 7 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

25 February 2021 941 3 View

Is there a free Raman Spectra database that I can search for a set of given peaks?

Is there a free Raman Spectra database that I can search for a set of given peaks? Thanks in advance for pointing the way.

23 December 2019 4,517 4 View

Can the detrital zircon method tell about the true sedimentary age?

Can the detrital zircon method tell about the true sedimentary age? Assuming a sedimentary formation were formed, said 1 Ga. This formation contain many detrital zircons of various ages for...

17 August 2019 3,068 6 View

I have a Raman spectra showing peak at 637cm-1 (610-640) from a fossil. Wondering what could this be?

This could be an organic metal complex. Any help will be very appreciated.

28 July 2019 1,221 3 View

Do avian- and nonavian-dinosaurs have medullary bone in femur only during reproduction period?

Just wonder when the medullary bone first shows up in female bird and dino in their life time. If this formed, will it disappear when it's not in reproduction phase?

24 January 2013 8,832 2 View

Help on IR spectra interpretation needed

Can anyone help me to interpret the following 3 IR peaks: ~1800 cm-1 strong, ~2510 cm-1 medium, twin at ~2870&2990 cm-1 weak. Any information of compound or functional group will be very appreciated.

01 January 1970 3,320 29 View