TABLE 1.
Solute composition of human seminal plasma and the simulant used in this study
| Solute | Concna
(mM) in: |
|
|---|---|---|
| Human seminal plasma | Simulant of seminal plasma | |
| Sodium | 130.4 | 117.8 |
| Chloride | 40 | 39.2 |
| Potassium | 27.9 | 27.9 |
| Calcium | 6.9 | 7 |
| Magnesium | 4.5 | 4.5 |
| Zinc | 2.5 | 2 |
| Phosphate | 7.8 | 7.8 |
| Bicarbonate | 20 | 20 |
| Lactic acid | 6.9 | 7 |
| Citrate | 27.5 | 27.6 |
| Urea | 7.5 | 7.5 |
| Fructose | 15.1 | *b |
| Glucose | 5.7 | 6 |
| Albumin | 0.23 | 0.76 |
| Total protein | 0.76 | 0.76 |
| pH | 7.7 | 7.7 |
| Buffering capacityc | 25 | 18.3 |
a
The values are the average concentrations of the major solutes in hSP, based on a literature review (22), unless indicated otherwise.
b
*, concentration, as indicated throughout the text.
c
Buffering capacity is given in slykes. The normal range for human semen is 15 to 40 slykes.