New Design of Mini PTFE Vessels for Sample Preparation in Micro Scale: Determination of Cd, K, Mg and Na in Biological Sample
This paper presents a study involving the development of a new mini polytetrafluoroethylene (PTFE) vessel project for biological sample preparation in micro scale in closed system with microwave radiation for subsequent determination of Cd, K, Mg and Na by atomic spectrometry techniques. All experiments were carried out in micro quantities of samples (up to 20 mg) and reagents (300 µL of HNO3) for 5 min at 350 W. Certified reference materials of biological samples (bovine muscle and liver) were used to evaluate the accuracy of the proposed system and the results obtained were in agreement with the certified value at 95% of confidence (t -test). Relative standard deviations (RSD) were lower than 8.0% for all elements. The proposed method is not only easy and fast, but it is also based on the use of an inexpensive system for sample digestion.
Main Authors: | Oliz,Camila M., Souza,Alexander O., Pereira,Camila C., Oliveira,Richard M., Medina,Aline L., Vieira,Mariana A., Ribeiro,Anderson S., Nunes,Adriane M. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2017
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017001001953 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Evaluation of sample preparation methods based on alkaline and acid solubilization for the determination of Na and K in meat samples by atomic spectrometric techniques
by: Silva,Caroline S. da, et al.
Published: (2012) -
Evaluation of the Use of a Reflux System for Sample Preparation of Xanthan Gum and Subsequent Determination of Ca, Cu, K, Mg, Na and Zn by Atomic Spectrometry Techniques
by: Rosa,Michele B. da, et al.
Published: (2016) -
Avaliação de tratamentos da amostra em microescala para a determinação de K, Mg, Na e Zn em carnes por técnicas de espectrometria atômica
by: Oliz,Camila Mizette, et al.
Published: (2013) -
Soil sampling and sample preparation
by: Pleysier, J.L.
Published: (1995) -
Fertilizers and liming materials. Sampling and sample preparation. Pt. 2: Sample preparation
by: International Organization for Standardization, Geneva (Switzerland) eng 175127
Published: (2016)