Because winter air has low humidity it dries out the skin, causing skin problems such as tightness, itching and scaling. healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

The mobile phase of system A (Table 2), and a TLC plate with silica gel bound to a plastic carrier (Silica Gel 60F 254 plastic sheets, 20 × 20 cm; Merck) gave a good separation of all the cream excipients, as shown in Fig. Indrasena W, Barrow C, Kralovec J (2006) Effect of hydrogen/air flow rates and scan rate on the flame ionization detection response of phospholipids, and their qualitative and quantitative analysis by Iatroscan (Mark-6 s) TLC-FID. However, positive reactions during patch-testing with the non-buffered cetomacrogol cream, and particularly with the individual cream ingredients were seldom observed, hence, the culprit allergen was not identified. Here, the position of the cream excipients on the rod is expressed as scan time, shown as the retention time on the chromatogram, in contrast to Rf values on a classical TLC plate.This means that the sub-licensee must not use IHTSDO SNOMED CT Browser to add or copy SNOMED CT identifiers into any type of record system, database or document.

If you would like to get involved in the development, this code is available under an Apache v2 open source license. Another option could be soaking the Chromarods in concentrated nitric acid followed by rinsing with water. The scan times, expressed as retention times on the chromatogram, found by using the different elution systems (Table 2) are reported in Table 3. The results shown in Table 2 allow to conclude that none of the investigated mobile phases were able to provide a satisfactory peak shape and separation, except for system K. I am a 70 year old male and have been using cetomacrogol in conjunction with Locoid for the care of eczema on and off for the past 5 years.The book entitled ‘Thin-Layer Chromatography with Flame Ionization Detection’ from Mojmir Ranny provided an extensive explanation on the use of TLC–FID, along with some specific applications and new perspectives [ 8]. n-Hexane, methyl tert-butyl ether (MTBE) and acetone were all purchased from VWR (Haasrode, Belgium). If you’ve tried cetomacrogol cream or another therapeutic skin lotion, we encourage you to share your experiences to help other patients.