RO95931B1 - Method for qualitatively determining methol in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acid - Google Patents
Method for qualitatively determining methol in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acidInfo
- Publication number
- RO95931B1 RO95931B1 RO124514A RO12451484A RO95931B1 RO 95931 B1 RO95931 B1 RO 95931B1 RO 124514 A RO124514 A RO 124514A RO 12451484 A RO12451484 A RO 12451484A RO 95931 B1 RO95931 B1 RO 95931B1
- Authority
- RO
- Romania
- Prior art keywords
- hydroquinone
- acid
- water
- methol
- ascorbic acid
- Prior art date
Links
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Prezenta inventie se refera la o metoda de determinare calitativa a metolului în prezenta hidrochinonei, acidului p-aminobenzoic si acidului ascorbic, ce consta în aceea ca se introduce o proba din medicament în apa, se aplica pe o placa cromatografica cu silicagel solutie etalon, respectiv supernatant din proba introdusa în apa, se cromatografiaza, cu un sistem de solventi constituit din n-butanol-acid formic-apa în raport, în volume, de 9 : 1 : 2,5, pe o distanta de 17 cm, se usuca, se repetadeveloparea si se identifica metolul în UV la 254 nm, apoi se pulverizeaza cu un amestec, constituit din parti egale în volum de solutie apoasa de clorura ferica 15% si solutie apoasa de fericianura de potasiu 1%, când apare spotul albastru caracteristic metolului.The present invention relates to a method for the qualitative determination of methole in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acid, which consists in introducing a sample of the drug into water, is applied to a chromatographic plate with standard solution silica gel the supernatant from the sample introduced into the water was chromatographed with a 9: 1: 2.5 n-butanol-formic acid-water solvent system over a distance of 17 cm, dried, repeat the development and identify the methole in UV at 254 nm, then spray with a mixture consisting of equal parts in volume of aqueous solution of ferric chloride 15% and aqueous solution of potassium ferricyristate 1% when the blue spot characteristic of metol appears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO124514A RO95931B1 (en) | 1984-12-18 | 1984-12-18 | Method for qualitatively determining methol in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO124514A RO95931B1 (en) | 1984-12-18 | 1984-12-18 | Method for qualitatively determining methol in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO95931B1 true RO95931B1 (en) | 1988-09-16 |
Family
ID=40904956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO124514A RO95931B1 (en) | 1984-12-18 | 1984-12-18 | Method for qualitatively determining methol in the presence of hydroquinone, p-aminobenzoic acid and ascorbic acid |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO95931B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367558A (en) * | 2017-07-06 | 2017-11-21 | 山东天元盈康检测评价技术有限公司 | A kind of ion detection method of p-aminobenzoic acid |
-
1984
- 1984-12-18 RO RO124514A patent/RO95931B1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367558A (en) * | 2017-07-06 | 2017-11-21 | 山东天元盈康检测评价技术有限公司 | A kind of ion detection method of p-aminobenzoic acid |
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