RESUMEN
The contents of trace elements Zn, Cu, Mn and Fe in 20 kinds of benefit traditional Chinese medicines were determined by FAAS. The recovery rates obtained by standard addition method is between 96.8% and 104.3%, and the RSD is lower than 2.0%. The results of the determination show that benefit traditional Chinese medicines are rich in trace elements such as Zn, Cu, Mn and Fe. Hematonic has the highest content of Fe. The content of Zn, Mn and Fe is relatively high in Qi-invigorating drugs. The content of Zn and Mn is relatively high in maletonic, while Yin-nourishing drugs have lower content of Fe. The results will provide scientific data for the study on the elements in benefit traditional Chinese medicines and on their relativity of efficacy of medicine.
Asunto(s)
Medicamentos Herbarios Chinos/química , Oligoelementos/análisis , Cobre/análisis , Hierro/análisis , Manganeso/análisis , Reproducibilidad de los Resultados , Espectrofotometría Atómica/métodos , Zinc/análisisRESUMEN
Conditions for simultaneous determination of multi-trace elements in pumpkin by FAAS were studied. K, Ca, Mg, Na, Zn, Cu, Mn, Fe, Co and Cr in different parts and different growth periods of pumpkin were determined, the relative standard deviation of the method is between 0.1% and 2.6%, and the recovery is between 96.7% and 106.5%. Analytical results were satisfactory. The results showed that some elements essential to human such as K, Ca, Mg, Zn, Cr and Mn in pumpkin are abundant, implying that the nutritive value of pumpkin is high.
Asunto(s)
Cucurbita/química , Extractos Vegetales/análisis , Espectrofotometría Atómica/métodos , Oligoelementos/análisisRESUMEN
A study was carried out on the content of trace elements such as Ca, Fe, Zn, Mn and Cu of prunus mume var. bungo in different growth periods by WFX-110 atomic absorption spectrometry. The results indicated that the linear relationships of different elements within the limits of working curves are good and the range of the recovery is 98% -105%, hence showing that the results are satisfactory. The total content of these five trace elements increases as the fruit grows, but the concentration is related to the growth of fruit and fruit core, which provides us with valuable data. The contents of the trace elements essential to human body are relatively high, which shows that this fruit breed has a relatively high nutritive value.
Asunto(s)
Frutas/química , Prunus/química , Espectrofotometría Atómica/métodos , Oligoelementos/análisis , Calcio/análisis , Cobre/análisis , Hierro/análisis , Manganeso/análisis , Prunus/crecimiento & desarrollo , Reproducibilidad de los Resultados , Espectrofotometría Atómica/instrumentación , Factores de Tiempo , Zinc/análisisRESUMEN
The twelve trace elements in the pagoda flower, including K, Na, Ca, Mg, Pb, Cd, Cu, Mn, Co, Zn, Cr and Fe were determined simultaneously by FAAS. The relative standard deviation of the method is 0.07%-2.31%, and the recovery is 97.0%-107.0%. The analytical results were satisfactory. The results showed that there were comparatively rich metal elements in the pagoda flower. Proportions of the twelve elements are in the order that K > Ca > Mg > Na > Fe > Zn > Cu > Mn > Co > Pb > Cr > Cd. It implied that the nutritive value of the pagoda flower is high.