All-in-one solid-phase microextraction: Development of a selective solid-phase microextraction fiber assembly for the simultaneous and efficient extraction of analytes with different polarities

2016 ◽  
Vol 39 (9) ◽  
pp. 1709-1716 ◽  
Author(s):  
Hossein Gharari ◽  
Manoochehr Farjaminezhad ◽  
Abdolrahim Marefat ◽  
Ali Reza Fakhari
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Fiber Assembly ◽  
Efficient Extraction

The Use of Solid Phase Microextraction (SPME) to Monitor for Major Organoleptic Compounds Produced by Chrysophytes in Surface Waters

1999 ◽  
Vol 40 (6) ◽  
pp. 251-256 ◽  
Author(s):  
Susan B. Watson ◽  
Brian Brownlee ◽  
Trevor Satchwill ◽  
E. McCauley
Keyword(s):  
Surface Waters ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Small Sample ◽  
Good Recovery ◽  
Culture Material ◽  
Treatment Facilities ◽  
Efficient Extraction ◽  
Cost Efficient ◽  
Related Compounds

An efficient extraction method is needed to measure trace levels of taste and odour compounds in surface waters. This is usually accomplished by costly and involved analytical procedures. We have developed a simpler alternative, using a commercially available microextraction apparatus (SPME). With this technique we successfully monitored trace levels of some target organoleptics (unsaturated aldehydes e.g. heptadienal, nonadienal, and related compounds) which commonly cause aquatic taste and odour. We identified these compounds in culture material, and analyzed for them during the development of odourous chrysophyte blooms in two ponds. Preliminary work has also found a good recovery of some important off-flavour terpenoids (e.g. geosmin and MIB). SPME is labour and cost efficient, and therefore appealing to water treatment facilities for detection and monitoring. In addition, SPME requires only small sample volumes, and is therefore suitable for culture work.

scholarly journals MICROEXTRAÇÃO EM FASE SÓLIDA: FUNDAMENTOS E APLICAÇÕES EM ANÁLISE DE ALIMENTOS

2003 ◽  
Vol 21 (1) ◽  
Author(s):  
LEILA MARTINS DA COSTA QUINTEIRO ◽  
ANA LÚCIA DA ROCHA NOBRE ◽  
AURÉLIO BAIRD BUARQUE FERREIRA ◽  
RONOEL LUIZ DE OLIVEIRA GODOY ◽  
IZABELA MIRANDA DE CASTRO
Keyword(s):  
Public Health ◽  
Gas Chromatography ◽  
Food Analysis ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Public Health Institutions ◽  
Efficient Extraction ◽  
Health Institutions ◽  
Solid Liquid

No presente trabalho são apresentados os principais aspectos teóricos, funcionais e analíticos, da Microextração em Fase Sólida (MEFS), dedicando-se um tópico especial para sua aplicação em análise de alimentos. São descritas as principais características da instrumentação, das etapas de extração e das formas operacionais. Mostra-se o desenvolvimento de método de análise por MEFS aliado à cromatografia a gás (CG) e algumas aplicações em análise de alimentos, sendo discutidas as principais vantagens oferecidas pela técnica. Concluiu-se que a MEFS permite a extração, sem o uso de solventes, e a determinação de uma série de substâncias de matrizes sólidas, líquidas ou gasosas de modo prático e eficiente. O uso crescente de MEFS-CG na detecção de fraudes, adulterações e contaminações de alimentos interessa aos órgãos fiscais responsáveis pela saúde pública. SOLID PHASE MICROEXTRACTION: FUNDAMENTALS AND APPLICATIONS IN FOOD ANALYSIS Abstract In this work, the most important aspects, analytical, theoretical and functional, of Solid Phase Microextraction (SPME) are presented, with a special emphasis in food analysis applications. The main features instrumentation of extraction stages and of operational procedures are described. Furthermore, development of the analytical method employing SPME with gas chromatography (GC) and some applications to food analysis and the advantages offered by this technique are discussed. SPME is seen to provide practical and efficient extraction without solvent as well as the determination of many compounds contained in solid, liquid or gas matrices. The use of SPME-GC methods for detection of fraud, adulteration and contamination of food has been increased, and is of interest to the official public health institutions.

Using cobalt/chromium layered double hydroxide nano-sheets as a novel packed in-tube solid phase microextraction sorbent for facile extraction of acidic pesticides from water samples

2018 ◽  
Vol 42 (12) ◽  
pp. 9935-9944 ◽  
Author(s):  
Hamid Asiabi ◽  
Yadollah Yamini ◽  
Maryam Shamsayei
Keyword(s):  
Layered Double Hydroxide ◽  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Cobalt Chromium ◽  
Efficient Extraction ◽  
Acidic Pesticides ◽  
Double Hydroxide

Cobalt/chromium-layered double hydroxide (Co/Cr (NO3−)-LDH) nano-sheets were employed as a packed in-tube solid phase microextraction sorbent for efficient extraction of acidic pesticides from water samples.

scholarly journals Optimization of extraction conditions of volatile compounds from pequi peel (Caryocar brasiliense Camb.) using HS-SPME

2020 ◽  
Vol 9 (7) ◽  
pp. e919974893
Author(s):  
Bárbara Oliveira Santos ◽  
Rodinei Augusti ◽  
Júlio Onésio Ferreira Melo ◽  
Jacqueline Aparecida Takahashi ◽  
Raquel Linhares Bello de Araújo
Keyword(s):  
Volatile Compounds ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Extraction Temperature ◽  
Great Economic Importance ◽  
Volatile Organic ◽  
Efficient Extraction ◽  
Caryocar Brasiliense ◽  
Agroindustrial Residue ◽  
Fruit Mass

The pequi is a native specie from the Brazilian Cerrado that has great economic importance for the population of the region. The pericarp is considered an agroindustrial residue despite corresponding to approximately 80% of the total fruit mass. Informations about the chemical composition of pericarp would allow better utilization of this portion of the fruit. The objective of this study was to identify the best conditions of agitation, extraction time and extraction temperature to maximize the extraction of volatile organic compounds present in pequi pericarp (Caryocar brasiliense Camb.) using two types of solid phase microextraction fibers. The extraction of the volatile compounds was using the headspace solid-phase microextraction method with subsequent separation and identification by CG-MS. Polydimethylsiloxane/divinylbenzene (PDMS/DVB) fiber was statistically more efficient than divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber. The both fibers enabled the extraction and identification of 35 compounds, mainly terpenes (65.71%) and esters (14.29%). An increase in the extraction temperature and time allowed greater extraction of volatile compounds by both fibers. However, in relation to agitation, the best condition for using DVB/CAR/PDMS was 100 rpm, while agitation was not necessary for an efficient extraction using the PDMS/DVB fiber.

Double -shelled hollow ZnO/carbon nanocubes as an efficient solid-phase microextraction coating for the extraction of broad-spectrum pollutants

Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2805-2811 ◽  
Author(s):  
Xingru Hu ◽  
Chaohai Wang ◽  
Rui Luo ◽  
Chao Liu ◽  
Junwen Qi ◽  
...  
Keyword(s):  
Analytical Chemistry ◽  
Broad Spectrum ◽  
Environmental Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Chemical Properties ◽  
Efficient Extraction

Efficient extraction of pollutants with different chemical properties from environmental samples has attracted great attention in the development of analytical chemistry.

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