A Fast, Low-Cost, and Environmental Friendly Micro-Flow-Batch Analyzer for Photometric Determination of Sulfites in Beverages

被引：0

作者：

Tavares, Marcio R. S. ^{[1
]}

Andrade, Stefani I. E. ^{[2
]}

Lima, Marcelo B. ^{[3
]}

Barreto, Inka S. ^{[4
]}

de Araujo, Mario C. U. ^{[2
]}

Almeida, Luciano F. ^{[2
]}

机构：

[1] Inst Fed Educ Ciencia & Tecnol Sertao Pernambucan, Campus Petrolina Zona Rural, BR-56300000 Petrolina, PE, Brazil

[2] Univ Fed Paraiba, Dept Quim, BR-58051970 Joao Pessoa, Paraiba, Brazil

[3] Univ Fed Rural Pernambuco, Unidade Acad Serra Talhada, BR-56909535 Serra Talhada, PE, Brazil

[4] Inst Fed Educ Ciencia & Tecnol Paraiba, Campus Monteiro, BR-58500000 Monteiro, PB, Brazil

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2019年 / 30卷 / 05期

关键词：

micro-flow-batch analyzer; sulfite; p-rosaniline-formaldehyde-sulfite reaction; beverage analysis; SPECTROPHOTOMETRIC DETERMINATION; SULFUR-DIOXIDE; FOOD; WINE;

D O I：

10.21577/0103-5053.20180243

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An automated microsystem for sulfite determination in beverages was developed. It presents higher sampling throughput, lower chemical consumption and less waste generation than previous flow methods, while using the same p-rosaniline-formaldehyde-sulfite reaction. The sampling rate, limit of detection (LOD), and relative standard deviation (RSD) were estimated at 130 h(-1), 80.0 mu g L-1, and < 1.3% (n = 5), respectively. Recoveries ranged from 96.8 to 102.6%.

引用

页码：1089 / 1094

页数：6

共 10 条

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