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Preparation of iodine 131 labeled iodinated nonoxynol 9


, : Preparation of iodine 131 labeled iodinated nonoxynol 9. Journal of Labelled Compounds & Radiopharmaceuticals 21(9): 821-832

A novel method for the radioiodination [131I] of the multicomponent non-ionic surfactant nonoxynol-9 (N-9) [the most widely used non-ionic surfactant in vaginal spermicides] is described. The extent of incorporation and distribution of the 131I-label into the aromatic moiety of various ethoxymer units of N-9 was determined utilizing a high pressure liquid chromatography (HPLC) method.

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Linnarsson, D.; Hesser, C. M., 1978: Dissociated ventilatory and central respiratory responses to carbon di oxide at raised nitrogen pressure. The effects of hyberbaric N on the responses of ventilation and central inspiratory activity (CIA) to progressive hypercapnia were studied in 8 subjects rebreathing O2 at an ambient pressure of 1.3 bar (control) and air at 6.1 bar (PO2 [partial pr...

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Eisenlohr, W. S., 1966: Water loss from a natural pond through transpiration by hydrophytes. The water loss to the air from a natural pond in which hydrophytes are growing consists of two parts, evaporation and transpiration. As both parts vary directly with the same meteorologic factors, the total loss, evapotranspiration, can be compute...

Latza, Ute; Karmaus, Wilfried; Stuermer, Til; Steiner, Markus; Neth, Axel; Rehder, Uwe, 2000: Cohort study of occupational risk factors of low back pain in construction workers. Objectives: To identify work related risk factors of future low back pain (LBP) in a cohort of construction workers free of LBP at the start of follow up. Methods: The Hamburg construction worker study comprises 571 male construction workers who h...

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Wachtel, M. F., 1984: A lack of tolerance to Meloidogyne javanica in three nematode resistant bitter almond rootstocks. Three of the Alnem series of Prunus amygdalus were tested for their reaction to M. javanica. There were no significant differences in plant height between inoculated and control plants and no reproduction or galling was observed on any of the stoc...