Kondensationsversuche mit 2,2,5,5‐Tetramethyl‐3,4‐dithiahexandial‐(1,6)

Merz, K. W.; Specker, M

doi:10.1002/ardp.19632960704

Cited by 13 publications

(1 citation statement)

References 31 publications

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“…All the synthesized ligands are derivatives of the cyclic Schiff base; 4,8-diazo-3,3,10,10-tetramethyl-1,2-dithiacyclodecane (S) as previously synthesized and reported. 42,43 (A) Synthesis of 4,8-diaza-3,3,10,10-tetramethyl-1,2-dithiacyclodecane (S 1 ). The Schiff base S (4.6 g, 0.02 mol) was dissolved in 120 mL of methanol at room temperature.…”

Section: Synthesis Of Ionophoresmentioning

confidence: 99%

A comparative study on PVC based sensors in determination of molybdenum

et al. 2011

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The proposed work described the synthesis of neutral ionophores; 4,8-diaza-3,3,10,10-tetramethyl-1,2dithiacyclodecane (S 1 ), 5,8-diaza-3,3,10,10-tetramethyl-1,2 dithiacyclodecane-N,N 00 -diacetic acid (S 2 ) and N,N 00 -bis(2,2-dimethyl-2-mercaptoethyl)ethylenediamine-N,N-diacetic acid (S 3 ) used for comparative analysis in determination of molybdenum(V) as PVC-based membrane sensors. The best result was obtained with sensor no. 7 based on S 3 ionophore with membrane composition (w/w, mg%); 5.0(S) : 30.0(PVC) : 5.0(KTpClPB) : 60.0(o-NPOE) showing a working range of 2.3 Â 10 À7 -1.0 Â 10 À2 M with a detection limit of 1.2 Â 10 À7 M and a toleration of non-aqueous media up to 15% with slope of 11.7 mV/decade of activity. The sensor no. 7 can also be used to assess the Mo(V) concentration in different natural samples (water bodies, soils, root nodules and urine samples) with comparative analysis of ETAAS and spectrophotometric methods. The proposed sensor no. 7 can be used 2.5 months without any distortion in results after that leaching of ionophore was observed from the membrane phase in aqueous solutions of Mo(V). The proposed sensor has shown a good dynamic response time of 11 s.

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Section: Synthesis Of Ionophoresmentioning

confidence: 99%