Thermal Analysis of Volatiles in Solids Using GC

01 January 1970 1 415 Report

Headspace Analysis
Thermal Desorption
Thermal Desorption / Decomposition
Pyrolysis

The above four techniques for sample introduction can be performed by inlet or external transfer into the inlet by a sequential apparatus. I am looking for perspectives in their use in forensic, material science, fine chemical, and analytical applications! Have been a GC user for 10 years, curious to learn more!

James E Hanson

My colleague Nicholas Snow is an expert - look at the publications on his RG page!

Badges
Science topic

More Curtis Guild's questions See All

How would you prepare red blood cell samples for an ELISA?

We are trying to use the Life Diagnostics Trout HSP70-23 to look at Heat Shock Protein 70 in fish red blood cells to look at physiological changes in response to stressors. I have found very...

08 April 2024 1,134 0 View

Which ploymers serve as best material for conductors?

I wish to learn more about polymers used in technology besides product design production. To add, which types, for example, help transfer data at the highest rate and consistency?

20 December 2022 3,925 3 View

Does anyone know of a platform that allows for individual questions to be timed within a test?

I have been searching for a platform to run a timed forced grammar judgment test. I have found many that allowed timing for the entire test, however, I have yet to find one that allows timing for...

23 April 2022 1,226 4 View

Separating cyclodextrins using Solid Phase Extraction?

Hi all, I'm trying to separate Alpha, Beta and Gamma cyclodextrins from each other in a mixed aqueous solution. Now I know that there are slight differences in polarity of the different...

16 February 2022 3,065 1 View

Has anyone used a premade hybridization buffer (from Roche for example) for zebrafish in situ hybridizations?

Our in situs (alkaline phosphatase based) have stopped working. Probes are fine, but or homemade hybridization buffer seems to be the issue. Using the same supplier of deionized formaminde as...

03 February 2021 8,728 2 View

Does anybody have any resources to understand how polymerization kinetics of random copolymers work? Specifically hydrogels if possible?

I am performing rate of reaction studies on hydrogels with 2 monomers and crosslinker. We can look at absorbance of a single wavelength of light over the course of the reaction through UV-Vis to...

29 October 2019 4,577 2 View

What references exist for long-run covariance matrix estimation in high dimensions?

Consider the long-run covariance matrix estimator for time series as proposed in Newey and West (1987). Ledoit and Wolf (2004) proposed an estimator for the covariance matrix (but not the long-run...

14 September 2019 6,004 2 View

What disease pathologies are you aware of that would benefit from elemental analysis?

Hello, I am currently researching a spectral computed tomography system for medical applications. The system excels in delineating the elemental composition of materials, providing a 3D...

06 March 2019 3,767 3 View

Is there research on the state of psychiatric crisis intervention for chronic pain patients?

I’m looking for information on psychiatric crisis care as it relates to chronic pain patients. The suicide rate is double for chronic pain patients. I’m trying to find out what we know and what’s...

03 December 2018 255 2 View

Making antisense probe from topo?

I need to make an antisense probe from a cloned sequence in pcrTOPO4. When I sequenced using the m13R primer, the sequence through a BLAST search come back as Plus/Minus. Just wondering how i...

01 March 2017 3,124 3 View

I have get this error when i calculated the geometrical optimization for prco3, it takes 12 hours until gives this message in the outputfile?

Fatal error in MPI_Allreduce: Other MPI error, error stack: MPI_Allreduce(1628)......: MPI_Allreduce(sbuf=000002459254A180, rbuf=000002459F86A140, count=4851, MPI_DOUBLE_COMPLEX, MPI_SUM,...

09 August 2024 7,615 1 View

Hello Everyone ! I'm looking for a good journal to publish my manuscript with low publication cost?

I am Looking for a Science Journal with good impact factor and low publication cost to publish a review paper. Your suggestions would be appreciated.

06 August 2024 6,796 3 View

Aspen Plus Simulation?

Greetings When one is to perform Simulation or modelling of Pyrolysis of Biomass Waste materials using Aspen Plus software, and one has both the macromolecules breakdown (Cellulose, Lignin and...

06 August 2024 5,023 1 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

What is the prepared reference material that can be used in inductively coupled plasma optical emission spectrometry (ICP-OES) to measure REE and U ?

What is the prepared reference material that can be used in the ICPE-9820 Shimadzu Japan instrument, which employs inductively coupled plasma optical emission spectrometry (ICP-OES) to measure...

06 August 2024 1,896 1 View

How can major oxides determined by ICP-MS/ES be normalized to 100% volatile free? How does this connect with LOI?

I am analyzing cherts from different sources found within one specific geologic formation using ICP-MS/ES. My committee was asking this question about my analysis. I was not sure how to answer this

05 August 2024 7,902 3 View

How effective is the Citi Bloc standard basket in enhancing the accuracy and comparability of international construction cost assessments?

Citi BLOC Standard Basket Definitions: A standardized unit representing a fixed basket of construction materials, labor, and equipment costs priced in various cities. Purpose: To create a common...

04 August 2024 8,997 1 View

People weight in Oaxaca Blinder Decomposition on R?

Hello guys! Do you have experience running a Oaxaca-Blinder decomposition on R applying person weights. How do you suggest doing it? I have a variable PERWT which gives more information on how...

04 August 2024 6,033 0 View

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal?

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal? Kindly advice

04 August 2024 7,367 3 View

Are authors sowing for scientific Journals to be reaping the benefits? We are charged for publication but we offer free peer review services, why?

As authors and academic writers, we usually prepare our manuscript using our own resources. We submit these manuscripts to scientific Journals for peer review and publication sometimes at a fee....

03 August 2024 7,304 2 View