reference material xrf glass disk Search Results


coastal seawater hg2 certified reference material crm  (LGC Standards)
93
LGC Standards coastal seawater hg2 certified reference material crm
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Coastal Seawater Hg2 Certified Reference Material Crm, supplied by LGC Standards, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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thin- lm xrf reference material  (AXO DRESDEN GmbH)
90
AXO DRESDEN GmbH thin- lm xrf reference material
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Thin Lm Xrf Reference Material, supplied by AXO DRESDEN GmbH, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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nist standard reference material 2783  (National Institute of Standards and Technology)
90
National Institute of Standards and Technology nist standard reference material 2783
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Nist Standard Reference Material 2783, supplied by National Institute of Standards and Technology, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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x-ray fluorescence spectroscopy (xrf, axios advanced  (PANalytical)
90
PANalytical x-ray fluorescence spectroscopy (xrf, axios advanced
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
X Ray Fluorescence Spectroscopy (Xrf, Axios Advanced, supplied by PANalytical, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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certified reference material xrf scientific 1201080  (XRF Scientific)
90
XRF Scientific certified reference material xrf scientific 1201080
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Certified Reference Material Xrf Scientific 1201080, supplied by XRF Scientific, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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vanta xrf standard reference materials  (Evident Corporation)
90
Evident Corporation vanta xrf standard reference materials
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Vanta Xrf Standard Reference Materials, supplied by Evident Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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reference material xrf glass disk  (LGC Standards)
90
LGC Standards reference material xrf glass disk
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Reference Material Xrf Glass Disk, supplied by LGC Standards, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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xrf analysis of air samples  (Moxtek Inc)
90
Moxtek Inc xrf analysis of air samples
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Xrf Analysis Of Air Samples, supplied by Moxtek Inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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xrf calibration standards  (Micromatter Technologies Inc)
90
Micromatter Technologies Inc xrf calibration standards
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Xrf Calibration Standards, supplied by Micromatter Technologies Inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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low-density polyethylene erm-ec681k  (Joint Research Center)
90
Joint Research Center low-density polyethylene erm-ec681k
Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of <t>Hg2+</t> ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).
Low Density Polyethylene Erm Ec681k, supplied by Joint Research Center, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Image Search Results


Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of Hg2+ ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).

Journal: Nano Research

Article Title: Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg2+) in seawater samples

doi: 10.1007/s12274-020-2731-y

Figure Lengend Snippet: Figure 3 The catalytic activity of bare nanozyme (0.85 × 10−9 M) in the presence of Hg2+ ions. (a) Full wavelength spectra of bare-AuNPs in the absence (blue line) and presence of Hg2+ ions (cyan line) after incubation with 1.25 mM TMB and 6% H2O2, 1.25 mM TMB/6% H2O2 mixture alone (red line) and 1 ppm Hg2+ ions only (black line). (b) Kinetic analysis of Hg2+ ions (black squares), 1.25 mM TMB/6% H2O2 (red circles), AuNPs and 1.25 mM TMB/6% H2O2 (blue triangles) and AuNPs with 1.25 mM TMB/6% H2O2 in the presence of 1 ppm Hg2+ ions (cyan triangles). All experiments were conducted over a 10 min incubation period at room temperature. (c) Linear relationship between Hg2+ concentration and the enhanced catalytic activity of the bare-nanozyme (R2 = 0.996) in dH2O. (d) Catalytic performance of the bare nanozyme for the detection of Hg2+ ions in a dH2O matrix (red bars) and in seawater conditions (3.5% NaCl, black bars).

Article Snippet: Coastal seawater Hg2+ certified reference material (CRM) was purchased from LGC Standards (UK).

Techniques: Activity Assay, Incubation, Concentration Assay

Figure 5 Characterisation of OEG-AuNP in the presence of Hg2+ (100 ppm). (a) TEM analysis indicates particle coalescence upon amalgamation (red arrows). (b) HRTEM. Inset: (1) HAADF-STEM, elemental mapping of (2) Au and (3) Hg2+. (c) EDS of the area in inset 1.

Journal: Nano Research

Article Title: Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg2+) in seawater samples

doi: 10.1007/s12274-020-2731-y

Figure Lengend Snippet: Figure 5 Characterisation of OEG-AuNP in the presence of Hg2+ (100 ppm). (a) TEM analysis indicates particle coalescence upon amalgamation (red arrows). (b) HRTEM. Inset: (1) HAADF-STEM, elemental mapping of (2) Au and (3) Hg2+. (c) EDS of the area in inset 1.

Article Snippet: Coastal seawater Hg2+ certified reference material (CRM) was purchased from LGC Standards (UK).

Techniques:

Figure 4 Experiment to confirm the suppression of OEG-AuNPs (OD@520nm = 0.5, 0.85 × 10−9 M) nanozyme activity, and recovery after incubation with Hg2+ ions (10 ppm). (a) Full wavelength spectra of bare-AuNP (black line) and OEG-functionalised AuNP (red line) after incubation with 1.25 mM TMB/6% H2O2 for 30 min. (b) Scanning kinetic analysis of bare-AuNP (black squares), OEG-functionalised AuNP (red circles) and OEG-AuNP incubated with Hg2+ ions (10 ppm) (blue triangles) all with 1.25 mM TMB/6% H2O2 at a fixed wavelength of 370 nm over 30 min.

Journal: Nano Research

Article Title: Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg2+) in seawater samples

doi: 10.1007/s12274-020-2731-y

Figure Lengend Snippet: Figure 4 Experiment to confirm the suppression of OEG-AuNPs (OD@520nm = 0.5, 0.85 × 10−9 M) nanozyme activity, and recovery after incubation with Hg2+ ions (10 ppm). (a) Full wavelength spectra of bare-AuNP (black line) and OEG-functionalised AuNP (red line) after incubation with 1.25 mM TMB/6% H2O2 for 30 min. (b) Scanning kinetic analysis of bare-AuNP (black squares), OEG-functionalised AuNP (red circles) and OEG-AuNP incubated with Hg2+ ions (10 ppm) (blue triangles) all with 1.25 mM TMB/6% H2O2 at a fixed wavelength of 370 nm over 30 min.

Article Snippet: Coastal seawater Hg2+ certified reference material (CRM) was purchased from LGC Standards (UK).

Techniques: Activity Assay, Incubation

Scheme 1 Working principle of the sensing mechanism for the colorimetric detection of Hg2+. Above row: bare-AuNPs can strongly catalyse for the oxidation of TMB substrate in the presence of H2O2. However, in the presence of 3.5% NaCl (to simulate the salt concentration of seawater) the catalytic activity of the AuNP is significantly reduced due to particle aggregation, even with the formation of Au-Hg amalgam. Below row: functionalising the AuNPs with OEG provides improved stability in high electrolyte environments. However, the catalytic activity of the OEG-AuNP is suppressed, and only recovered in the presence of Hg2+ ions. The mechanism can be attributed to the formation of Au-Hg amalgam, which can provide a colorimetric sensor applicable to seawater conditions.

Journal: Nano Research

Article Title: Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg2+) in seawater samples

doi: 10.1007/s12274-020-2731-y

Figure Lengend Snippet: Scheme 1 Working principle of the sensing mechanism for the colorimetric detection of Hg2+. Above row: bare-AuNPs can strongly catalyse for the oxidation of TMB substrate in the presence of H2O2. However, in the presence of 3.5% NaCl (to simulate the salt concentration of seawater) the catalytic activity of the AuNP is significantly reduced due to particle aggregation, even with the formation of Au-Hg amalgam. Below row: functionalising the AuNPs with OEG provides improved stability in high electrolyte environments. However, the catalytic activity of the OEG-AuNP is suppressed, and only recovered in the presence of Hg2+ ions. The mechanism can be attributed to the formation of Au-Hg amalgam, which can provide a colorimetric sensor applicable to seawater conditions.

Article Snippet: Coastal seawater Hg2+ certified reference material (CRM) was purchased from LGC Standards (UK).

Techniques: Concentration Assay, Activity Assay

Figure 6 Illustrating assay sensitivity and specificity in dH2O. (a) Analysis of OEG-AuNP nanozyme activity with increasing concentrations of Hg2+ ions. Inset: the linear relationship between Hg2+ concentration and enhanced nanozyme activity (R2 = 0.996). Data was normalised relative to the blank sample (zero). (b) Analysis of OEG-AuNP nanozyme activity in the presence of additional metal ions (all at 10 ppm).

Journal: Nano Research

Article Title: Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg2+) in seawater samples

doi: 10.1007/s12274-020-2731-y

Figure Lengend Snippet: Figure 6 Illustrating assay sensitivity and specificity in dH2O. (a) Analysis of OEG-AuNP nanozyme activity with increasing concentrations of Hg2+ ions. Inset: the linear relationship between Hg2+ concentration and enhanced nanozyme activity (R2 = 0.996). Data was normalised relative to the blank sample (zero). (b) Analysis of OEG-AuNP nanozyme activity in the presence of additional metal ions (all at 10 ppm).

Article Snippet: Coastal seawater Hg2+ certified reference material (CRM) was purchased from LGC Standards (UK).

Techniques: Activity Assay, Concentration Assay