Cavity ring-down spectroscopy versus high-temperature conversion isotope ratio mass spectrometry; a case study on δ 2 H and δ 18 O of pure water samples and alcohol/water mixtures

2009 ◽  
Vol 23 (12) ◽  
pp. 1879-1884 ◽  
Author(s):  
Willi A. Brand ◽  
Heike Geilmann ◽  
Eric R. Crosson ◽  
Chris W. Rella
Keyword(s):  
Mass Spectrometry ◽  
High Temperature ◽  
Water Samples ◽  
Isotope Ratio ◽  
Pure Water ◽  
Isotope Ratio Mass Spectrometry ◽  
Cavity Ring Down Spectroscopy ◽  
Alcohol Water ◽  
Cavity Ring Down

Economically Motivated Adulteration of Lemon Juice: Cavity Ring Down Spectroscopy in Comparison with Isotope Ratio Mass Spectrometry: Round-Robin Study

2019 ◽  
Vol 102 (5) ◽  
pp. 1544-1551 ◽  
Author(s):  
Madhavi Mantha ◽  
Kevin M. Kubachka ◽  
John R. Urban ◽  
Catherine O. Dasenbrock ◽  
Anatoly Chernyshev ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Isotope Ratio ◽  
Isotope Ratio Mass Spectrometry ◽  
Round Robin ◽  
Lemon Juice ◽  
Cavity Ring Down Spectroscopy ◽  
Cavity Ring Down

Direct Comparison of Cavity Ring Down Spectrometry and Isotope Ratio Mass Spectrometry for Detection of Sugar Adulteration in Honey Samples

2018 ◽  
Vol 101 (6) ◽  
pp. 1857-1863 ◽  
Author(s):  
Madhavi Mantha ◽  
John R Urban ◽  
William A Mark ◽  
Anatoly Chernyshev ◽  
Kevin M Kubachka
Keyword(s):  
Mass Spectrometry ◽  
Isotope Ratio ◽  
Low Cost ◽  
Isotope Ratio Mass Spectrometry ◽  
Cane Sugar ◽  
Technical Knowledge ◽  
Scientific Methods ◽  
High Fructose ◽  
Honey Analysis ◽  
Cavity Ring Down

Abstract In the last several years, economically motivated adulteration (EMA) of foods including honey has received increased attention. The addition of inexpensive sweeteners such as high fructose corn syrup or cane sugar to honey is still encountered despite scientific methods that can routinely detect this type of adulteration. The standard method for detection of these adulterants utilizes isotope ratio mass spectrometry (IRMS); however, this technique requires an elevated degree of technical knowledge for operation as well as a high cost for purchase and maintenance. Cavity ring down spectroscopy (CRDS) has demonstrated potential for this type of analysis and is less expensive with simpler operation. This study evaluates CRDS for the detection of low-cost sweeteners added to honey and compares the performance of CRDS to IRMS. Several honey samples were analyzed, and the advantages and limitations specific to CRDS were evaluated. Overall, the results indicate that CRDS provides a performance comparable to the benchmark technique IRMS for EMA honey analysis.

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