Review – trace determination of potentially toxic elements in (medicinal) plant materials

2017 ◽  
Vol 9 (10) ◽  
pp. 1550-1574 ◽  
Author(s):  
Michaela Zeiner ◽  
Iva Juranović Cindrić
Keyword(s):  
Medicinal Plant ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Medical Applications ◽  
Trace Determination ◽  
Plant Materials ◽  
Metal Levels

Since plant materials may contain high amounts of harmful metals, it is important to ensure the safe use of herbs by determining the current metal levels in herbs and their parts used for medical applications.

Determination of essential and potentially toxic elements and their estimation of bioaccessibility in honeys

2019 ◽  
Vol 151 ◽  
pp. 104221
Author(s):  
Sidimar Santos Oliveira ◽  
Camilla Nascimento Alves ◽  
Elane Santos Boa Morte ◽  
Anibal de Freitas Santos Júnior ◽  
Rennan Geovanny Oliveira Araujo ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements

scholarly journals DETERMINATION OF SIMPLE SUGARS IN MEDICINAL PLANT MATERIALS BY THE METHOD OF HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY (FOR EXAMPLE, THE FRUITS OF SEA BUCKTHORN L. AND NETTLE LEAVES L.)

2020 ◽  
pp. 215-222
Author(s):  
Ol'ga Valer'yevna Trineeva ◽  
Aleksey Ivanovich Slivkin
Keyword(s):  
Medicinal Plant ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Raw Materials ◽  
Sea Buckthorn ◽  
Standard Samples ◽  
Plant Materials ◽  
Layer Chromatography

An analysis of the literature over the past 20 years has shown that when controlling the quality of drugs containing monosaccharides, as well as studying the composition of simple sugars in polysaccharide complexes of medicinal plants and not only, preference is given to physicochemical methods, as the most express, sensitive and informative. No means have been found in the scientific literature to identify and quantify simultaneously various monosaccharides by high performance thin layer chromatography (HPTLC). An economical and rapid method has been developed for the identification and quantitative determination of simple reducing sugars (by the example of glucose, rhamnose and xylose) by the HPTLC method. The optimal conditions for their chromatography in a thin layer of sorbent with a quantitative interpretation of HPTLC data on a personal computer were experimentally selected and theoretically substantiated. In a detailed study of the influence of the polarity of the system on the value of Rf, the intervals of values of the polarity of the eluent were chosen, in which these dependences become linear. Using the proposed dependencies, you can select different systems for the separation of monosaccharides in a thin layer of sorbent, so that the value of Rf fit into the optimal values. The proposed method was tested on medicinal plant raw materials of nettle dioica and sea buckthorn fruits of various conservation methods. Zones of simple sugars of characteristic color were found on the chromatograms of extracts from the studied raw materials, among which glucose, xylose and rhamnose were identified by the characteristic value of Rf values in comparison with reliable standard samples. The technique can be used in quality control of substances, single-component and complex preparations, plant objects, dietary supplements, premixes and products of the food industry.

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