Table 5.
Analytical characteristics of fluorimetric sensors for mercury determination in water, published between 2007 and 2009.
| λex/ λem (nm) | Chromophore | Tested sample | LoD (μg/L) | RSD (%) | Ref. |
|---|---|---|---|---|---|
| 510/581 | Rhodamine on thioglycolic acid modified gold nanoparticles (−) | River water | 0.01 | 1.2 | [87] |
| 485/535 | Polarization on DNA functionalized gold nanoparticles (+) | Spiked river water | 0.2 | nr | [88] |
| 500/550 | Rhodamine derivatives (+) | Spiked waters | 1 | nr | [89] |
| 475/510 | carboxyfluorescein on 4-([4-(dimethylamino)phenyl]azo) benzoic acid binding on DNA probes | Pond water | 1 | nr | [90] |
| 401/538 | Naphthalimide derivative of 2,6-bis(aminomethyl)pyridine | Tap waters | 1.4 | 2.3 | [91] |
| 520/600 | Polythymine oligonucleotide T33, citrate-capped gold nanoparticles | Pond water | 2 | 8 | [92] |
| 273/519–527 | T–T mismatch base pairs, (−) | Spiked river water | 4 | [93] | |
| 425/646–603 | Prophirin-quinoline (turn-off at 646 nm and turn on at 603 nm) | Spiked river waters | 4.4 | nr | [94] |
| 490/510 | Oligonucleotides, DNA intercalators, and conjugated polymers | Standards | 6.4 | nr | [95] |
| 228–280/330 | CdS-encapsulated DNA nanocomposite (−) | Wastewater | 8 | [96] | |
| 438/673 | Porphyrin/PVC membrane (−) | Spiked river water | 8 | 4 | [97] |
| 273/519–527 | T–T mismatch base pairs (+) | Buffer | 8.4 | [98] | |
| 480/525 | DNA-functionalized gold nanoparticles & OliGreen | Spiked pond water | 10 | [99] | |
| 499/624 | Seminaphthofluorescein chromophore. (+) | River waters | 10 | 4.5 | [100] |
| 365/488 | Coumarinylalkyne (−) | Buffer pH 7.4 | 20 | [101] | |
| 458/534 | 2-[(Aminoethylthio)propylthio]ethanamine on 7-nitro-benzo-2-oxa-1,3-diazolyl moieties (+) | Acetonitrile/water | 20 | [102] | |
| 415/ratio 525/650 | Naphthalimide-porphyrin hybrid (+) | River waters | 20 | 4.4 | [103] |
| 633/ratio 501/403 | Polymer thiourea-thiadiazole-pyridine (+) | Water/Tetrahydrofuran | 22.6 | nr | [104] |
| 490/591–520 | CdSe quantum dots surface-modified with triethanolamine | Standards | 36 | nr | [105] |
| 352/500 | Quinolinocyclodextrin derivative (−) | Standards | 60 | nr | [106] |
| 246/309 | N,N′-(1,4-phenylenedimethylidyne) bis-1,4-benzene-diamine (−) | Ethanol/water 9:1 | 120 | nr | [107] |
| 303/487 | 8-Benzyloxyquinolinebased ester (−) | Standards | 520 | nr | [108] |
| 300–400/ | Nine cross-reactive sensing fluorescent elements on micro-plate and data processed by pattern recognition (−) | Mineral waters | 20,000 | nr | [65] |
*
LoD: Limit of Detection; RSD: Relative Standard Deviation; nr: not reported; (−) turn off, (+) turn on