Spectroscopy — A highly sensitive AgNPs/Ni3(HHTP)2 SERS substrate for the detection of food additives and pesticide residues

4 measurement groups · 6 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

rod-shaped Ni3(HHTP)2 film · Thin Film

Bruker Invenio, KBr press method, 300-4000 cm^-1 range.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3(HHTP)2 FTIR assigned peaks	3294, 1218, 1459, 679, and 551 cm^-1	—	—	Text Rounded Reported	5 · Characterization · Figure 3(c)

PVP-modified monolayer AgNP film · Thin Film

UV-3600 Plus220; AgNPs in ethanol solution.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
AgNP UV-vis absorption peak	446 nm	—	—	Text Rounded Reported	5 · Characterization · Figure 4(c)

Ni3(HHTP)2 mixed with crystal violet in ethanol · Unknown

UV-vis spectra of Ni3(HHTP)2 ethanol solution, CV ethanol solution, and mixed Ni3(HHTP)2/CV solution; Ni3(HHTP)2 1 mg ml^-1 and CV 10^-6 M.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3(HHTP)2 absorption peak after CV mixing	358 nm	—	—	Text Rounded Reported	Figure S17 caption · Figure S17
Ni3(HHTP)2 absorption peak before CV mixing	365 nm	—	—	Text Rounded Reported	11 · SERS Enhancement mechanism · Figure S17

rod-shaped Ni3(HHTP)2 film · Thin Film

Thermo Scientific K-Alpha XPS; full scan and high-resolution Ni/C/O scans.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C1s and O1s deconvoluted binding energies	C=C 284.7 eV; C-O 287.95 eV; Ni-O 532.90 eV; C-O 531.20 eV	—	—	Text Rounded Reported	5 · Characterization · Figure S4(c,d)
Ni 2p3/2 binding energy	856.11 eV	—	—	Text Rounded Reported	5 · Characterization · Figure S4(b)