---
_id: '12940'
abstract:
- lang: eng
text: Desorption electrospray ionization (DESI), easy ambient sonic-spray ionization
(EASI) and low-temperature plasma (LTP) ionization are powerful ambient ionization
techniques for mass spectrometry. However, every single method has its limitation
in terms of polarity and molecular weight of analyte molecules. After the miniaturization
of every possible component of the different ion sources, we finally were able
to embed two emitters and an ion transfer tubing into a small, hand-held device.
The pen-like interface is connected to the mass spectrometer and a separate control
unit via a bundle of flexible tubing and cables. The novel device allows the user
to ionize an extended range of chemicals by simple switching between DESI, voltage-free
EASI, or LTP ionization as well as to freely move the interface over a surface
of interest. A mini camera, which is mounted on the tip of the pen, magnifies
the desorption area and enables a simple positioning of the pen. The interface
was successfully tested using different types of chemicals, pharmaceuticals, and
real life samples. Moreover, the combination of optical data from the camera module
and chemical data obtained by mass analysis facilitates a novel type of imaging
mass spectrometry, which we name “interactive mass spectrometry imaging (IMSI)”.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Christina
full_name: Meisenbichler, Christina
last_name: Meisenbichler
- first_name: Florian
full_name: Kluibenschedl, Florian
id: 7499e70e-eb2c-11ec-b98b-f925648bc9d9
last_name: Kluibenschedl
- first_name: Thomas
full_name: Müller, Thomas
last_name: Müller
citation:
ama: Meisenbichler C, Kluibenschedl F, Müller T. A 3-in-1 hand-held ambient mass
spectrometry interface for identification and 2D localization of chemicals on
surfaces. Analytical Chemistry. 2020;92(21):14314-14318. doi:10.1021/acs.analchem.0c02615
apa: Meisenbichler, C., Kluibenschedl, F., & Müller, T. (2020). A 3-in-1 hand-held
ambient mass spectrometry interface for identification and 2D localization of
chemicals on surfaces. Analytical Chemistry. American Chemical Society.
https://doi.org/10.1021/acs.analchem.0c02615
chicago: Meisenbichler, Christina, Florian Kluibenschedl, and Thomas Müller. “A
3-in-1 Hand-Held Ambient Mass Spectrometry Interface for Identification and 2D
Localization of Chemicals on Surfaces.” Analytical Chemistry. American
Chemical Society, 2020. https://doi.org/10.1021/acs.analchem.0c02615.
ieee: C. Meisenbichler, F. Kluibenschedl, and T. Müller, “A 3-in-1 hand-held ambient
mass spectrometry interface for identification and 2D localization of chemicals
on surfaces,” Analytical Chemistry, vol. 92, no. 21. American Chemical
Society, pp. 14314–14318, 2020.
ista: Meisenbichler C, Kluibenschedl F, Müller T. 2020. A 3-in-1 hand-held ambient
mass spectrometry interface for identification and 2D localization of chemicals
on surfaces. Analytical Chemistry. 92(21), 14314–14318.
mla: Meisenbichler, Christina, et al. “A 3-in-1 Hand-Held Ambient Mass Spectrometry
Interface for Identification and 2D Localization of Chemicals on Surfaces.” Analytical
Chemistry, vol. 92, no. 21, American Chemical Society, 2020, pp. 14314–18,
doi:10.1021/acs.analchem.0c02615.
short: C. Meisenbichler, F. Kluibenschedl, T. Müller, Analytical Chemistry 92 (2020)
14314–14318.
date_created: 2023-05-10T14:50:19Z
date_published: 2020-10-16T00:00:00Z
date_updated: 2023-05-15T08:01:20Z
day: '16'
doi: 10.1021/acs.analchem.0c02615
extern: '1'
external_id:
pmid:
- '33063994'
intvolume: ' 92'
issue: '21'
keyword:
- Analytical Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1021/acs.analchem.0c02615
month: '10'
oa: 1
oa_version: Published Version
page: 14314-14318
pmid: 1
publication: Analytical Chemistry
publication_identifier:
issn:
- 0003-2700
- 1520-6882
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: A 3-in-1 hand-held ambient mass spectrometry interface for identification and
2D localization of chemicals on surfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 92
year: '2020'
...
---
_id: '13383'
abstract:
- lang: eng
text: Two novel donor–acceptor Stenhouse adducts (DASAs) featuring the catechol
moiety were synthesized and characterized. Both compounds bind strongly to the
surfaces of magnetite nanoparticles. An adrenaline-derived DASA renders the particles
insoluble in all common solvents, likely because of poor solvation of the zwitterionic
isomer generated on the nanoparticle surfaces. Well-soluble nanoparticles were
successfully obtained using dopamine-derived DASA equipped with a long alkyl chain.
Upon its attachment to nanoparticles, this DASA undergoes an irreversible decoloration
reaction owing to the formation of the zwitterionic form. The reaction follows
first-order kinetics and proceeds more rapidly on large nanoparticles. Interestingly,
decoloration can be suppressed in the presence of free DASA molecules in solution
or at high nanoparticle concentrations.
article_processing_charge: No
article_type: original
author:
- first_name: Johannes
full_name: Ahrens, Johannes
last_name: Ahrens
- first_name: Tong
full_name: Bian, Tong
last_name: Bian
- first_name: Tom
full_name: Vexler, Tom
last_name: Vexler
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: Ahrens J, Bian T, Vexler T, Klajn R. Irreversible bleaching of donor-acceptor
stenhouse adducts on the surfaces of magnetite nanoparticles. ChemPhotoChem.
2017;1(5):230-236. doi:10.1002/cptc.201700009
apa: Ahrens, J., Bian, T., Vexler, T., & Klajn, R. (2017). Irreversible bleaching
of donor-acceptor stenhouse adducts on the surfaces of magnetite nanoparticles.
ChemPhotoChem. Wiley. https://doi.org/10.1002/cptc.201700009
chicago: Ahrens, Johannes, Tong Bian, Tom Vexler, and Rafal Klajn. “Irreversible
Bleaching of Donor-Acceptor Stenhouse Adducts on the Surfaces of Magnetite Nanoparticles.”
ChemPhotoChem. Wiley, 2017. https://doi.org/10.1002/cptc.201700009.
ieee: J. Ahrens, T. Bian, T. Vexler, and R. Klajn, “Irreversible bleaching of donor-acceptor
stenhouse adducts on the surfaces of magnetite nanoparticles,” ChemPhotoChem,
vol. 1, no. 5. Wiley, pp. 230–236, 2017.
ista: Ahrens J, Bian T, Vexler T, Klajn R. 2017. Irreversible bleaching of donor-acceptor
stenhouse adducts on the surfaces of magnetite nanoparticles. ChemPhotoChem. 1(5),
230–236.
mla: Ahrens, Johannes, et al. “Irreversible Bleaching of Donor-Acceptor Stenhouse
Adducts on the Surfaces of Magnetite Nanoparticles.” ChemPhotoChem, vol.
1, no. 5, Wiley, 2017, pp. 230–36, doi:10.1002/cptc.201700009.
short: J. Ahrens, T. Bian, T. Vexler, R. Klajn, ChemPhotoChem 1 (2017) 230–236.
date_created: 2023-08-01T09:41:43Z
date_published: 2017-05-01T00:00:00Z
date_updated: 2023-08-07T12:08:05Z
day: '01'
doi: 10.1002/cptc.201700009
extern: '1'
intvolume: ' 1'
issue: '5'
keyword:
- Organic Chemistry
- Physical and Theoretical Chemistry
- Analytical Chemistry
language:
- iso: eng
month: '05'
oa_version: None
page: 230-236
publication: ChemPhotoChem
publication_identifier:
eissn:
- 2367-0932
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Irreversible bleaching of donor-acceptor stenhouse adducts on the surfaces
of magnetite nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2017'
...