An ultrasonic cleaning machine (KQ-700V, Kunshan, China) with an output power of 700 W was used for the synthesis of Pdots. The morphology of the prepared nanoparticles was characterized by atomic force microscopy (AFM, Veeco Instruments, USA). Transmission electron microscopy (TEM) was performed on a Tecnai G2 F20 (FEI Company, USA). Particle sizes and zeta potentials were measured by dynamic light scattering (DLS) on a Nano ZS90 Zetasizer analyzer (Malvern, U.K.). Fourier-transform infrared spectroscopy (FTIR) spectra were recorded using a Magna-IR 750 Fourier-transform infrared spectrometer (Nicolet, USA). UV-Vis spectra were recorded using a Lambda 750 spectrometer (PerkinElmer, USA). Fluorescence measurements were carried out on a Cary Eclipse Fluorescence Spectrometer (Varian, USA).
Lambda 750 spectrometer
Manufactured by PerkinElmer
Sourced in United States
The PerkinElmer Lambda 750 spectrometer is a versatile instrument designed for performing UV-Vis-NIR spectroscopy. It features a dual-beam optical system, a wide wavelength range, and high-resolution capabilities.
Automatically generated - may contain errors
Lab products found in correlation
Tecnai g2 f20, by Thermo Fisher Scientific (1 mentions)
Cary eclipse fluorescence spectrometer, by Agilent Technologies (1 mentions)
D max γa x ray diffractometer, by Rigaku (1 mentions)
Nexion 300q, by PerkinElmer (1 mentions)
Jem 2200fs stem tem microscope, by JEOL (1 mentions)
Ht7700, by Hitachi (1 mentions)
K alpha instrument, by Thermo Fisher Scientific (1 mentions)
Jem 2100f transmission, by JEOL (1 mentions)
Agilent 5110, by Agilent Technologies (1 mentions)
Zetasizer nano zs90, by Malvern Panalytical (1 mentions)
Maitai deepsee, by Spectra-Physics (1 mentions)
Truspec chn elementary analyzer, by Leco (1 mentions)
Amx 300, by Bruker (1 mentions)
Drx 400, by Bruker (1 mentions)
Drx 500, by Bruker (1 mentions)
9 protocols using lambda 750 spectrometer
1
Synthesis and Characterization of Pdots
2
Characterization of Laminated Graphene Layers
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The film thickness of the spin-coated PEDOT:PSS was measured using an Alpha-step 500 profilometer. The optical transmittance measurement of the laminated graphene layers was performed using UV-visible-NIR spectroscopy (Perkin Elmer Lambda 750 Spectrometer, USA). Raman spectra of the laminated graphene layers were obtained by Raman spectroscopy (Horiba high resolution dispersive Raman microscope, France). The beam size of the microscope equipped with a 532-nm laser and a 50X objective was just 1 μm and the applied maximum power was 10 mW. Electrochemistry measurements were performed with a potentiostat (CHI1030, CH Instrument Inc., USA). Cyclic voltammetry was conducted with a three-electrode cell in which ITO (with an active area for both the ITO and PEDOT:PSS of about 1 × 1 cm) was used as a working electrode. A platinum wire and saturated Ag/AgCl (SCE) were used as an auxiliary electrode and a reference electrode, respectively. The optical contrast ratio and response times were measured via the converted luminous transmittance (resulting in absorption and transmission changes) after applying a reverse bias voltage ranging from −3.5 to +3.5 V for both bleached and colored states, respectively, using an LCD electro-optical measurement system (LCD 5200, Otsuka Electronics Co., Ltd., Japan) in transmission mode with a standard illuminant D65 (halogen lamp) as a light source.
3
Structural Characterization of Reduced Graphene Oxide-Iron Oxide Nanocomposite
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Raman spectra were carried out using a Renishaw Micro-Raman spectrometer System, UK with an excitation source of 532 nm wavelength incident laser. UV-vis absorption spectroscopy detection was performed by a LAMBDA 750 spectrometer (PerkinElmer, Waltham, MA, USA). The transmission electron microscopy (TEM, FEI, Hillsboro, OR, USA) was used to investigate surface morphology of r-GO/Fe2O3 and r-GO with an accelerating voltage of 200 kV. Fourier transform infrared (FTIR) spectra of the samples were carried with HYPERION 2000 spectrometer (Bruker, karlsruhe, Germany) in the range of 600–4000 cm−1.
4
Determination of Total Phenolic Content
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Total phenolic compounds (TPC) were estimated colorimetrically by using the Folin-Ciocalteau method [50 ], which is based on reducing tungstate and/or molybdate in the Folin-Ciocalteau reagent by phenols in an alkaline medium resulting in a blue-colored solution. Results were expressed as mg gallic acid equivalents per g of sample dry weight (mg GAE/g). The absorbance measurements were performed by using a UV/VIS/NIR Lambda 750 spectrometer (PerkinElmer Inc., Waltham, MA, USA) at 765 nm.
5
Comprehensive Characterization of BiVO4 Photocatalyst
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
X-ray diffraction (XRD) patterns of the BiVO4 prepared under different pH value were recorded on a D/max-γA X-ray diffractometer (Rigaku, Tokyo, Japan) equipped with graphite monochromatized Cu-Kαradiation (λ = 1.54178 Å). Field emission scanning electron microscope (FESEM, JEOL JSM 6700F field emission JEOL, Tokyo, Japan) is used to analyze the morphologies of the particles and bacteria cells after disinfection. UV-Vis diffuse reflectance spectra were measured by a Perkin Elmer Lambda 750 Spectrometer (Perkin Elmer, Waltham, MA, USA). The concentration of RhB during the degradation was recorded by colorimetry with a UV-vis spectrometer (721 Shanghai Lengguang Tech., Shanghai, China) at λmax = 553 nm. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR, Nicolet 6700* Thermo Nicolet, Waltham, MA, USA) is chosen to observe functional group changes of the envelope of E. coli.
6
Comprehensive Nanostructural Characterization by TEM
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Transmission electron microscopy (TEM)
analysis was conducted using a Hitachi HT7700 (Tokyo, Japan) operated
at 120 kV. High-resolution high-angle annular dark-field scanning
transmission electron microscopy (HAADF-STEM) and tomography images
were taken on a JEOL JEM 2200FS STEM/TEM microscope equipped with
a CEOS probe corrector (Heidelberg, Germany) to provide a nominal
image resolution of 0.07 nm. Energy dispersive X-ray (EDX) analysis
was performed in STEM mode using an aberration-corrected JEOL 2200FS
electron microscope equipped with a Bruker-AXS SDD detector. The metal
contents were determined using an inductively coupled plasma mass
spectrometer (ICP-MS, NexION 300Q, PerkinElmer). UV–vis-NIR
extinction spectra were recorded on a Lambda 750 spectrometer (PerkinElmer).
analysis was conducted using a Hitachi HT7700 (Tokyo, Japan) operated
at 120 kV. High-resolution high-angle annular dark-field scanning
transmission electron microscopy (HAADF-STEM) and tomography images
were taken on a JEOL JEM 2200FS STEM/TEM microscope equipped with
a CEOS probe corrector (Heidelberg, Germany) to provide a nominal
image resolution of 0.07 nm. Energy dispersive X-ray (EDX) analysis
was performed in STEM mode using an aberration-corrected JEOL 2200FS
electron microscope equipped with a Bruker-AXS SDD detector. The metal
contents were determined using an inductively coupled plasma mass
spectrometer (ICP-MS, NexION 300Q, PerkinElmer). UV–vis-NIR
extinction spectra were recorded on a Lambda 750 spectrometer (PerkinElmer).
7
Copper-based Photoluminescent Nanoparticles
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
CPNDs were synthesized on the basis of a reported method.42 (link) First, 0.0085 g of CuCl2·2H2O and 0.5 g of PVP were added to deionized water (5 mL) to form a homogeneous solution by magnetic stirring. Next, 5 mL of deionized water containing NaOH (0.004 g) was added to the above solution and continuously stirred to form a green solution. Subsequently, H2O2 (100 μL) was added to the mixed solution and stirred for 30 min. The resultant CPNDs were obtained by ultrafiltration and washed three times.
TEM imaging was carried out with a JEOL JEM-2100F transmission electron microscope. Hydrodynamic particle size distribution was determined using dynamic light scattering (DLS) (Zetasizer Nano ZS90; Malvern Instruments, Malvern, UK). XPS analysis was performed with a K-Alpha instrument (Thermo Fisher Scientific, Waltham, MA, USA). The content of copper was determined using inductively coupled plasma mass spectrometry (ICP-MS) (Agilent 5110, USA). UV/visible absorption spectra were measured with a Lambda-750 spectrometer (PerkinElmer, Shanghai, China).
TEM imaging was carried out with a JEOL JEM-2100F transmission electron microscope. Hydrodynamic particle size distribution was determined using dynamic light scattering (DLS) (Zetasizer Nano ZS90; Malvern Instruments, Malvern, UK). XPS analysis was performed with a K-Alpha instrument (Thermo Fisher Scientific, Waltham, MA, USA). The content of copper was determined using inductively coupled plasma mass spectrometry (ICP-MS) (Agilent 5110, USA). UV/visible absorption spectra were measured with a Lambda-750 spectrometer (PerkinElmer, Shanghai, China).
8
Nonlinear Optical Characterization of Photosensitizers
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
UV-VIS spectra were obtained using a PerkinElmer Lambda 750 spectrometer. Z-Scan measurements were performed on a home-built setup powered using a high power femtosecond laser oscillator (MaiTai DeepSee, Spectra Physics, Santa Clara, USA) with the tuning range of 690-1040 nm, a repetition rate of 80 MHz and a pulse duration of 70 fs. 39 Using a motorized stage, the transmitted signal at 25 positions along the focused beam is recorded. A beam chopper with 90 Hz rotation frequency and an on-time of 78 µs reduces the exposure time of the sample to prevent thermo-optical effects caused by the high repetition rate of the laser. 40 Each z-scan setting was measured in triplicate. Stock solutions of P2CK (10 mM), Eosin Y (3 mM), and cisplatin (1 mM) were prepared by dissolving the respective PS in PBS, while 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin (TPP) was dissolved in DMSO at a concentration of 10 mM. For each material, four different laser powers were used to verify that heat accumulation caused by the high repetition rate of the laser did not affect the measured 2PA behaviour.
9
Synthesis and Characterization of Quadruply Bonded Molybdenum Complex
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
All manipulations were carried out using standard Schlenk and glove-box techniques, under an atmosphere of argon and of high purity nitrogen, respectively. All solvents were dried, stored over 4 Å molecular sieves, and degassed prior to use. Toluene (C7H8), n-pentane (C5H12) and n-hexane (C6H14) were distilled under nitrogen over sodium. Tetrahydrofuran (THF) and diethyl ether were distilled under nitrogen over sodium/benzophenone. [D6]Benzene and [D8]THF were distilled under argon over sodium/benzophenone; [D8]toluene was distilled under argon over sodium. The quadruply bonded complex [Mo2(µ-Me)(µ-Me)2Li(thf){µ-HC(NDipp)2}2] (1) was prepared as described previously. [3] Solution NMR spectra were recorded on Bruker AMX-300, DRX-400 and DRX-500 spectrometers. Spectra were referenced to external SiMe4 (: 0 ppm) using the residual proton solvent peaks as internal standards ( 1 H NMR experiments), or the characteristic resonances of the solvent nuclei ( 13 C NMR experiments), while 31 P was referenced to H3PO4. Spectral assignments were made by routine one-and two-dimensional NMR experiments ( 1 H, 13 C, 13 C{ 1 H}, 31 P{ 1 H}, COSY, NOESY, HSQC and HMBC) where appropriate. UV-visible spectra were recorded on a Perkin Elmer Lambda 750 spectrometer. For elemental analyses a LECO TruSpec CHN elementary analyzer, was utilized.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!