[Determination of microelements in human placenta II. Commun.: Spectrophotometric determination of zinc content in human placenta (author's transl)]

Area of Science:

• Biochemistry
• Human Physiology
• Trace Element Analysis

Context:

• The human placenta plays a vital role in nutrient transfer and fetal development.
• Accurate quantification of essential minerals like zinc is crucial for understanding placental function.
• Existing methods for zinc determination may have limitations in sensitivity or accuracy.

Purpose:

• To quantify the zinc content in fresh and dried human placental tissue.
• To validate an improved combined dithizone-zincon method for trace element analysis in biological samples.

Summary:

• An improved dithizone-zincon method was employed to determine zinc concentrations in human placenta.
• Results indicate an average zinc content of 11.13 ± 0.62 ppm in fresh placental tissue.
• Dried placental tissue exhibited a significantly higher zinc concentration of 64.98 ± 3.34 ppm.

Impact:

• Provides precise reference values for zinc levels in human placenta.
• Highlights the impact of dehydration on measured zinc concentrations.
• Contributes to the understanding of zinc homeostasis during pregnancy.