Thermogravimetric analyses were performed with a Jupiter STA 449 F5 thermal analyzer (Netzsch, Selb, Germany) combined with a FT-IR Vertex 70V spectrometer (Bruker Optik, Ettlingen, Germany) in the temperature range from 20 to 600 °C at a heating rate of 20 °C/min in a nitrogen atmosphere.
Ft ir vertex 70v spectrometer
Manufactured by Bruker
Sourced in Germany
The FT-IR Vertex 70V spectrometer is a laboratory instrument designed for Fourier Transform Infrared (FT-IR) spectroscopy. It is capable of analyzing the infrared absorption spectrum of a sample, providing information about its molecular composition and structure.
Automatically generated - may contain errors
Lab products found in correlation
3 protocols using ft ir vertex 70v spectrometer
1
Thermal Analysis of Materials
2
FTIR Spectroscopy for Protein Analysis
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The absorbance spectra were collected using an FTIR Vertex 70v spectrometer (Bruker, Ettingen, Germany) at the National Defense Science and Technology Innovation Institute in Beijing. The range of the wavenumber was set as 4000–800 cm−1 with the resolution of 4 cm−1 and a spectrum was taken for 64 scans to improve the signal-to-noise ratio. To attenuate spectral distortion caused by Mie scattering (RMies), all the raw FTIR spectra were pre-processed with the RMies-EMSC algorithm. Because the band of amide II is largely not dependent on protein secondary structure, the corrected spectrum was normalized for equal absorption peak intensity in the position of amide II. All the data were collected by OPUS (Bruker, Ettingen, Germany) and pre-processed by MATLAB R2016b software (MathWorks, Natick, Massachusetts, USA).
3
Thermogravimetric Analysis of Irradiated Samples
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The thermogravimetric analysis (TGA) of all samples (non-irradiated and UV-irradiated) was performed on the Jupiter STA 449 F5 thermoanalyzer by Netzsch coupled with the FT-IR Vertex 70V spectrometer by Bruker Optik in the following conditions: a nitrogen atmosphere, a temperature range of 20–600 °C, and a heating rate of 10°/min. The weight of the samples was 6–10 mg. The simultaneous measurement of TG, DTG, and DSC allowed for the determination of the following parameters: decomposition onset temperature (T0), temperature (Tmax) at the maximum process rate (Vmax), weight loss (∆m) for individual stages, and heat effects (ΔH) accompanying the decomposition. The mixture of volatile products, released at temperatures ranging from room temperature to 600 °C, was analyzed based on the infrared spectra recorded in the range of 400–4000 cm−1. The evolved gases were transported to the gas cell (with ZnSe spectrophotometric windows) in an FTIR spectrophotometer. The connections between the thermoanalyzer and spectrophotometer were heated to 200 °C to prevent condensation. The carrier gas shows no infrared absorption.
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!