Determination of artificial sweeteners by capillary electrophoresis with contactless conductivity detection optimized by hydrodynamic pumping

Stojkovic, Marko; Duc, Thanh; Hauser, Peter C.

doi:10.1016/j.aca.2013.05.039

Cited by 49 publications

(25 citation statements)

References 24 publications

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“…Note, that some of these performance parameters very much depend on how the separation procedure has been optimized (i.e. either for high separation efficiency, fast analysis time, wide dynamic range, or low limits of detection, see for example 29, 30) and a comparison between different quoted performance values for C 4 D is hampered by this fact.…”

Section: Resultsmentioning

confidence: 99%

Referenced Capacitively Coupled Conductivity Detector for Capillary Electrophoresis

2013

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A dual capacitively coupled contactless conductivity detector for capillary electrophoresis was developed. The two channels are arranged in a bridge configuration so that one of them acts as a reference whose signal is subtracted. This effectively compensates for the baseline conductivity of the separation buffer so that the electronic zero setting is not necessary. Changes in the buffer composition are automatically accounted for, as are temperature drifts. The system is demonstrated for the detection of inorganic model cations in capillary electrophoresis. Besides the use with two separate capillaries, one of which solely serves as reference, it was also found possible to use a single capillary which is looped back through the reference cell.

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Section: Resultsmentioning

confidence: 99%

Referenced Capacitively Coupled Conductivity Detector for Capillary Electrophoresis

2013

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“…In general, these additives can be obtained from nature or manufactured by the chemical industry. The main food additives analyzed by CE in the period covered by this review (2013–2015) were sweeteners , preservatives , and colorants .…”

Section: Food Additivesmentioning

confidence: 99%

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

et al. 2015

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This review work presents and discusses the main applications of capillary electromigration methods in food analysis and Foodomics. Papers that were published during the period February 2013-February 2015 are included following the previous review by Garcia-Cañas et al. (Electrophoresis, 2014, 35, 147-169). Analysis by CE of a large variety of food-related molecules with different chemical properties, including amino acids, hazardous amines, peptides, proteins, phenols, polyphenols, lipids, carbohydrates, DNAs, vitamins, toxins, contaminants, pesticides, residues, food additives, as well as small organic and inorganic compounds. This work includes recent results on food quality and safety, nutritional value, storage, bioactivity, as well as applications of CE for monitoring food processing. The use, among other CE developments, of microchips, CE-MS, and chiral CE in food analysis and Foodomics is also discussed.

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“…Flow‐through techniques, such as flow injection and sequential injection analysis (SIA), enable easy and automated operation and their coupling to CE‐C 4 D has been shown to be beneficial for liquid handling and sample injections in several contributions during the last 2 years. Mai and Hauser have published a series of manuscripts on coupling a SIA manifold to CE‐C 4 D and have examined the hyphenated systems for flexible manipulations of sample plugs and BGE solutions before and during CE analyses . Stojkovic et al.…”

Section: Instrumentationmentioning

confidence: 99%

“…Stojkovic et al. demonstrated how the application of hydrodynamic pumping during an electrophoretic separation in narrow capillaries could be used to compensate the EOF and to optimize the analysis time in the analysis of artificial sweeteners. Mai and Hauser demonstrated different schemes of concurrent anion and cation separations in a single capillary aided by hydrodynamic pumping .…”

Section: Instrumentationmentioning

confidence: 99%

Contactless conductivity detection for analytical techniques—Developments from 2012 to 2014

Kubáň

Hauser

2014

Electrophoresis

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The review covers the progress of capacitively coupled contactless conductivity detection over the 2 years leading up to mid-2014. During this period many new applications for conventional CE as well as for microchip separation devices have been reported; prominent areas have been clinical, pharmaceutical, forensic, and food analyses. Further progress has been made in the development of field portable instrumentation based on CE with contactless conductivity detection. Several reports concern the combination with sample pretreatment techniques, in particular electrodriven extractions. Accounts of arrays of contactless conductivity detectors have appeared, which have been created for quite different tasks requiring spatially resolved information. The trend of the use of contactless conductivity measurements for applications other than CE has continued.

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Determination of artificial sweeteners by capillary electrophoresis with contactless conductivity detection optimized by hydrodynamic pumping

Cited by 49 publications

References 24 publications

Referenced Capacitively Coupled Conductivity Detector for Capillary Electrophoresis

Referenced Capacitively Coupled Conductivity Detector for Capillary Electrophoresis

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

Contactless conductivity detection for analytical techniques—Developments from 2012 to 2014

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