The largest database of trusted experimental protocols

5 protocols using 6130 mass spectrometer

1

Analytical Characterization of Chemical Compounds

Check if the same lab product or an alternative is used in the 5 most similar protocols
Compounds were synthesized in the National Center for Advancing Translational Sciences (Supporting Information Table S2). Purity determination was performed using an Agilent diode array detector for both method 1 and method 2 (below). Mass determination was performed using an Agilent 6130 mass spectrometer with electrospray ionization in the positive mode. Chiral separations were performed by normal phase chromatography using a CHIRALPAKAD column (5 cm × 50 cm, 20 μm) on an Agilent 1200 HPLC. 1H NMR spectra were recorded on Varian 400 MHz spectrometers. Chemical shifts are reported in ppm with undeuterated solvent (DMSO-d6 at 2.49 ppm) as internal standard for DMSO-d6 solutions. All of the analogs tested in the biological assays have purity greater than 95%, based on both analytical methods. High resolution mass spectrometry was recorded on Agilent 6210 time-of-flight LC/MS system. Confirmation of molecular formula was accomplished using electrospray ionization in the positive mode with the Agilent Masshunter software (version B.02).
+ Open protocol
+ Expand
2

HPLC-MS Analysis of Organic Analogs

Check if the same lab product or an alternative is used in the 5 most similar protocols
Analysis was performed on an Agilent 1260 with a 7 min gradient from 4% to 100% acetonitrile (containing 0.025% trifluoroacetic acid) in water (containing 0.05% trifluoroacetic acid) over 8 min run time at a flow rate of 1 mL/min. A Phenomenex Luna C18 column (3 µm, 3 mm × 75 mm) was used at a temperature of 50 °C. Purity determination was performed using an Agilent diode array detector for both method 1 and method 2. Mass determination was performed using an Agilent 6130 mass spectrometer with electrospray ionization in the positive mode. All of the analogs for assay have purity greater than 95% based on both analytical methods. 1H NMR spectra were recorded on Varian 400 MHz spectrometers. High resolution mass spectrometry results were recorded on Agilent 6210 time-of-flight LC/MS system.
+ Open protocol
+ Expand
3

ESI-TOF-MS Analysis of Amyloid-Beta Complexes

Check if the same lab product or an alternative is used in the 5 most similar protocols
ESI-TOF-MS experiments were performed on an Agilent 6130 mass spectrometer connected to an Agilent 1260 HPLC system. Samples were analyzed by direct infusion (1-4 μL) of analyte into a mobile phase of 1:1 water:acetonitrile containing 5 mM ammonium acetate (pH unmodified), flowing at 0.3 mL/min and maintained at 30°C. All components of the mobile phase were mass spectrometry grade. Nitrogen drying gas was heated to 250°C, and run at 5 L/min with a nebulizing pressure of 15 psig. Voltages were: capillary 3 kV, fragmentor 175 V, skimmer 30 V, octopole 250 V. Samples were prepared as ~4 mg/mL of total protein (Aβ1−16) in ammonium carbonate (0.02 M, pH 9) buffer with 0 or 1 equivalents of the Ru-N complexes.
+ Open protocol
+ Expand
4

Characterization of Novel Organic Compounds

Check if the same lab product or an alternative is used in the 5 most similar protocols
All reagents and solvents were obtained from commercial sources and used without further purification. All aqueous solutions were prepared using either deionized or distilled water. 1H-NMR (500 MHz) spectra were recorded on the Varian S500 spectrometer. Elemental analyses were performed using the Thermo Scientific FlashEA 1112 elemental analyser. Mass spectra were obtained using the Agilent 6130 mass spectrometer. Fourier-transform infrared (FT-IR) spectra were recorded on the Thermo Scientific Nicolet iS50 FT-IR spectrometer. Potentiometric measurements were carried out in the pKa mode using the Metrohm 808 Titrando titrator with the Tiamo 2.3 software and Pt1000 pH electrode. Kinetic studies were carried out in the monochromator mode using the Applied Photophysics SX20 stopped-flow spectrometer equipped with a thermoelectric temperature controller (±0.5°C).
+ Open protocol
+ Expand
5

Analytical Characterization of Synthetic Compounds

Check if the same lab product or an alternative is used in the 5 most similar protocols
Compounds were synthesized at the National Center for Advancing Translational Sciences. Purity determination was performed using an Agilent Diode Array Detector for both Method 1 and Method 2 (below). Mass determination was performed using an Agilent 6130 mass spectrometer with electrospray ionization in the positive mode. 1H NMR spectra were recorded on Varian 400 MHz spectrometers. Chemical shifts for final compounds are reported in ppm with undeuterated solvent (DMSO-d6 at 2.50 ppm) as internal standard for DMSO-d6 solutions. Chemical shifts for intermediate compounds are reported in ppm with undeuterated solvent (CDCl3 at 7.26 ppm) as internal standard for CDCl3 solutions. All the analogs tested in the biological assays have purity greater than 95%, based on both analytical methods. High resolution mass spectrometry was recorded on Agilent 6210 Time-of-Flight LC/MS system. Confirmation of molecular formula was accomplished using electrospray ionization in the positive mode with the Agilent Masshunter software (version B.02).
+ Open protocol
+ Expand

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

Sign up now

Revolutionizing how scientists
search and build protocols!