PMID- 32255110
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20200511
LR  - 20200511
IS  - 1364-5528 (Electronic)
IS  - 0003-2654 (Linking)
VI  - 145
IP  - 9
DP  - 2020 May 7
TI  - Trace manganese detection via differential pulse cathodic stripping voltammetry 
      using disposable electrodes: additively manufactured nanographite electrochemical 
      sensing platforms.
PG  - 3424-3430
LID - 10.1039/d0an00018c [doi]
AB  - Additive manufacturing is a promising technology for the rapid and economical 
      fabrication of portable electroanalytical devices. In this paper we seek to 
      determine how our bespoke additive manufacturing feedstocks act as the basis of 
      an electrochemical sensing platform towards the sensing of manganese(ii) via 
      differential pulse cathodic stripping voltammetry (DPCSV), despite the electrode 
      comprising only 25 wt% nanographite and 75 wt% plastic (polylactic acid). The 
      Additive Manufactured electrodes (AM-electrodes) are also critically compared to 
      graphite screen-printed macroelectrodes (SPEs) and both are explored in model and 
      real tap-water samples. Using optimized DPCSV conditions at pH 6.0, the 
      analytical outputs using the AM-electrodes are as follows: limit of detection, 
      1.6 x 10(-9) mol L(-1) (0.09 mug L(-1)); analytical sensitivity, 3.4 muA V mumol(-1) 
      L; linear range, 9.1 x 10(-9) mol L(-1) to 2.7 x 10(-6) mol L(-1) (R(2) = 0.998); 
      and RSD 4.9% (N = 10 for 1 mumol L(-1)). These results are compared to 
      screen-printed macroelectrodes (SPEs) giving comparable results providing 
      confidence that AM-electrodes can provide the basis for useful electrochemical 
      sensing platforms. The proposed electroanalytical method (both AM-electrodes and 
      SPEs) is shown to be successfully applied for the determination of manganese(ii) 
      in tap water samples and in the analysis of a certified material (drinking 
      water). The proposed method is feasible to be applied for in-loco analyses due to 
      the portability of sensing; in addition, the use of AM-printed electrodes is 
      attractive due to their low cost.
FAU - Rocha, Diego P
AU  - Rocha DP
AD  - Faculty of Science and Engineering, Manchester Metropolitan University, Chester 
      Street, Manchester, M1 5GD, UK. C.Banks@mmu.ac.uk.
FAU - Foster, Christopher W
AU  - Foster CW
FAU - Munoz, Rodrigo A A
AU  - Munoz RAA
FAU - Buller, Gary A
AU  - Buller GA
FAU - Keefe, Edmund M
AU  - Keefe EM
FAU - Banks, Craig E
AU  - Banks CE
LA  - eng
PT  - Journal Article
DEP - 20200407
PL  - England
TA  - Analyst
JT  - The Analyst
JID - 0372652
SB  - IM
EDAT- 2020/04/08 06:00
MHDA- 2020/04/08 06:01
CRDT- 2020/04/08 06:00
PHST- 2020/04/08 06:00 [pubmed]
PHST- 2020/04/08 06:01 [medline]
PHST- 2020/04/08 06:00 [entrez]
AID - 10.1039/d0an00018c [doi]
PST - ppublish
SO  - Analyst. 2020 May 7;145(9):3424-3430. doi: 10.1039/d0an00018c. Epub 2020 Apr 7.