Application of DV-SIA manifold for determination of thiocyanate ions in human saliva samples

A two-in-one device for online monitoring of direct immersion single-drop microextraction: an optical probe as both microdrop holder and measuring cell

“…Therefore, the developed method is more environmentally friendly and cheaper. Moreover, phase separation 28,42,43 and transfer of the extraction phase to a microvolume cell are excluded. As a consequence, the method can be considered as simpler and less time consuming.…”

“…For the rst time, an optical probe is proposed as the holder of the extraction drop and the measuring cell in a direct immersion single-drop microextraction. In the proposed DI-SDME scheme the necessity of transferring the extraction phase to a microcuvette 28,42 or the pedestal of a cuvetteless spectrophotometer as well as dispensing to a ow cell 28,43 for absorbance measurement is eliminated. This makes the analysis simpler and less time-consuming and allows the absorbance to be recorded online.…”

Smoking And Thiocyanates In High School Students, University Students And Children With Hypertension

“…The concentration of thiocyanate in biological samples can be determined by different methodsgravimetric , titrimetric , electrochemical , kinetic, chromatographic, atomic , Roentgen , spectrophotometric (2,(10)(11)(12)To determine the concentration of thiocyanates in blood serum and urine we applied our modified spectrophotometric method Giraudi and Grillo (10), which allows the biomarker to be determined in two biodegradables -urine and blood serum. Lower limit of detection of the method allows to reduce the volume of samples analyzed and the volumes of reagents used.…”

“…The method is fast and its technical execution is easy -requires the addition of only two reagents to the pre-treated samples, which makes it applicable for serial analyzes. Indicator for the relevance of the method is the data collected from the literature review -the method of Giraudi and Grillo is one of the most quoted and used spectrophotometric methods (11,12).…”

An automatic, vigorous-injection assisted dispersive liquid–liquid microextraction technique for stopped-flow spectrophotometric detection of boron

“…One solution based on a dual-valve sequential injection manifold (DV-SIA) employing two separate SIA units connected with the extraction chamber by a tubing system was reported [21][22][23]. The SV-SIA manifold recently suggested by our lab [24] provides another conception in that it allows the entire procedure to be carried out in a single SIA unit.…”