Multicomponent analysis of hemoglobin derivatives with reversed-optics spectrophotometer

Area of Science:

• Clinical chemistry
• Spectrophotometry
• Hematology

Background:

• Accurate quantification of hemoglobin derivatives is crucial for diagnosing and monitoring various physiological and pathological conditions.
• Existing methods for determining individual hemoglobin derivatives can be time-consuming and may lack comprehensive analysis.

Purpose of the Study:

• To develop and validate a simultaneous determination method for five clinically relevant hemoglobin derivatives using spectrophotometry.
• To assess the reliability and accuracy of this multicomponent analysis method compared to conventional techniques.

Main Methods:

• Utilized a reversed-optics spectrophotometer (Hewlett-Packard HP8450 A UV/Vis) for spectral measurements.
• Employed a built-in computer program for multicomponent analysis in an overdetermined system.
• Measured spectra of hemoglobin (Hb), oxyhemoglobin (HbO2), carboxyhemoglobin (HbCO), methemoglobin (Hi), and sulfhemoglobin (SHb) in human blood samples.

Main Results:

• The multicomponent spectrophotometric method successfully determined five hemoglobin derivatives simultaneously.
• Validation against conventional methods for oxygen saturation, HbCO, Hi, and SHb showed sufficient reliability and accuracy.
• The method demonstrated its utility in physiological chemical research and clinical laboratory settings.

Conclusions:

• The developed multicomponent spectrophotometric method provides a reliable and accurate means for simultaneous determination of key hemoglobin derivatives.
• This approach simplifies the analysis of hemoglobin profiles, making it suitable for routine clinical diagnostics and scientific research.