Chromatography of food preservatives on polyamide layers and columns

✍ Scribed by Kinzo Nagasawa; Hisae Yoshidome; Ryuzo Takeshita

• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 580 KB
• Volume: 43
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)99229-x

✦ Synopsis

The separation of eight kinds of food preservative by one-and two-dimensional chromatography on polyamide layers was investigated.

A comparison was made between the detection limits on polyamide and silica gel layers, and the superiority of the polyamide thin layers was confirmed.

The separation of the food preservatives on a polyamide column with two types of elution system was established. The recovery of these compounds was satisfactory, * "Wa& Polyamide B-IO" contains IO O/i anhydrous calcium sulfate as a binder (Wakb Pure Chemical fndustrics, Ltd., Nihonbashi-honcho, Chu&ku, Tokyo, Japan). J. C?~romatog.. 43 (1969) 473-479 * In the case of benzoic acicl, the absorbamy was measured at 240 mp, as benzoic acid has no absorption maximum in H,O-AcOH-MeOH (5.5 :o.s: 4).