Table 1 Comparison of KgM-AgNPs sensor with reported works towards Hg2+ detection in solution.

From: Synthesis of biocompatible Konjac glucomannan stabilized silver nanoparticles, with Asystasia gangetica phenolic extract for colorimetric detection of mercury (II) ion

Detection method

Linear range (µM)

Limit of detection (LOD) (nM)

References

Electrochemistry (Cyclic voltammetry)

0.001–0.50

0.014

23

Electrochemistry (Differential pulse voltammetry)

0.001–0.20

0.38

24

Colorimetry (Au@DTSP/CRN)

0.10–0.35 & 0.35–4.00

28.5

17

Colorimetry(Au@S-g-C3N4)

0.10–0.50

0.275

18

Colorimetry(Gum Kondagogu-AgNPs)

0.050–0.90

50.0

19

Sodium alginate-AgNPs

0.025–60.0

5.29

20

Fluorescence(Nitrogen doped carbon qdots)

0.0–5.0

17.0

21

Fluorescence

0.0–5.0

10.5

22

Fluorescence (carbon dots)

0.0–5.8

7.6

61

Colorimetry(KgM-AgNPs)

0.010–10.0 and 10.0–60.0

3.25

This work

  1. Au@DTSP/CRN = creatinine on 3, 3′-dithiodipropionic acid di (N-hydroxysuccinimide ester) functionalized gold nanoparticles; Au@S-g-C3N4 = gold nanoparticles assembled on Sulphur doped graphitic carbon; qdots = quantum dots.
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