Multiwavelength Raman spectroscopy

Multiwavelength Raman spectroscopy is currently used to study carbon compounds. There is a large diversity of carbon compounds depending on the ratio of sp to sp that can be... 

Multiwavelength spectroscopy of biofluids provides several advantages over chemical assays that are not particular to Raman spectroscopy. First, all measurements are performed on the same sample volume, since multiple chemicals concentrations can be computed from a single spectrum. There is typically just one optical sensor unit or cartridge required. In multi-chemical assays, the sample must be separated into subvolumes that are sent to different single-chemical sensor units. This increases the volume of sample needed, the complexity of the sample s path through the analyzer, and the number of sensor units needed. 

In addition to this quantitative information, it is also possible to obtain qualitative information about an analyte, such as the presence or absence of specific functional groups and their relative locations or orientations. A subset of the available optical detection methods are capable of providing this information, such as multiwavelength UV-Vis absorbance or fluorescence, nuclear magnetic resonance, and Raman spectroscopies these techniques will be discussed in more detail in this chapter. 

Table 5-41. Other spectroscopic methods Multiwavelength analysis, NMR, raman spectroscopy, and surface photovoltage spectroscopy. ...

---