Rapid, Sensitive Colorimetric Method for the Determination of Estrogens

Urbányi, Tibor; Rehm, C.K.

doi:10.1002/jps.2600550511

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Pramod P Karkhanis and Jon R Anfinsen1

Fig 2-actual Working Curve For Ee Standards1

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1967

1975

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Cited by 17 publications

(3 citation statements)

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“…The amounts chosen were the averages found in commercial preparations (20). The sensitivity of the method is such that single-tablet analysis, even at the lowest dosage, is feasible; this sensitivity is an improvement over the diazotized 4-amino-6-chloro-m -benzenedisulfonamide method (14). Another advantage is the applicability of the method to progestin-estrogen combinations, which is an improvement over the fluorometric method (15).…”

Section: Resultsmentioning

confidence: 99%

Rapid, Sensitive Colorimetric Method for Determination of Ethinyl Estradiol

Eldawy

Tawfik

El-Shabouri

1975

Journal of Pharmaceutical Sciences

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Section: Resultsmentioning

confidence: 99%

Rapid, Sensitive Colorimetric Method for Determination of Ethinyl Estradiol

Eldawy

Tawfik

El-Shabouri

1975

Journal of Pharmaceutical Sciences

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“…Several chemical methods for the estrone are found in the literature (1)(2)(3)(4)(5). However, due to the small amount of the steroid and the interference from the other ingredients in these pharmaceutical preparations, the results obtained with some of these methods were unreliable.…”

Section: Pramod P Karkhanis and Jon R Anfinsenmentioning

confidence: 99%