Comparison of isotope ratio mass spectrometry and cavity ring-down spectroscopy procedures and precision of the doubly labeled water method in different physiological specimens,Rapid Communications in Mass Spectrometry

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Comparison of isotope ratio mass spectrometry and cavity ring-down spectroscopy procedures and precision of the doubly labeled water method in different physiological specimens
Rapid Communications in Mass Spectrometry ( IF 2 ) Pub Date : 2021-09-01 , DOI: 10.1002/rcm.9188
Hiroyuki Sagayama _{1,

2} , Natalie M Racine ₂ , Timothy C Shriver ₂ , Dale A Schoeller _{2,

3}

Affiliation

This study determines if saliva collection procedures for the doubly labeled water (DLW) method, used for measuring total energy expenditure (TEE), are comparable to urine and plasma collection. Both the cavity ring-down spectroscopy (CRDS) and isotope ratio mass spectrometry (IRMS) analyses techniques are compared.

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