Institut de Chimie Moléculaire et des Matériaux d'Orsay

Mass spectrometry

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Contact

Mass service
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Tanya INCEOGLU
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Hélène MAISONNEUVE
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Build.: 410 groundfloor

Office: 01 69 15 47 65

Lab: 01 69 15 33 76

Information obtained

The mass spectrometry is an analysis technique that allows to identify molecules by measuring their mass and to characterize their structure.

According to the methods of ionization, we can obtain the mass and the molecular formula of molecule as well as structural information.

Which analysis for your sample ?

Electrospray (ESI) is used for polar and/or high molecular weight molecules.

The APCI is restricted to molecules of low polarity.

For apolar molecules and low molecular weigh gas chromatography is more advisable .

Here is a table to help you to choose :

ionization modes and applicable compounds-small.png

How to use 

Users submit an analysis request online at ChemProducts and bring their sample(s) to the mass spectrometry laboratory.

Reminder for all analysis:

It is imperative that the analysis request form be fully completed, and that the full nample's name be noted on the vial (2mL minimum with a screw cap).
Warning, One analysis = One reservation! For example, if you would like to analyze the same sample in positive and negative mode, you will have to make two reservations, one for each analysis.

Requests made after 10:30am will not be considered.

 

For ESI analysis you need to :

  • For stable molecule and m/z <1000

1) Book online with ChemProducts at the latest by 10:30am on the day of the analysis:
- Connect to ChemProducts https://www.chemproducts.universite-paris-saclay.fr/
- Click on "Booking" and then on "Booking".
- Click on Electrospray (ESI) - routine [pour les m/z de 150 à 1000]
- Choose the date you wish to do the analysis and click on "+" to reserve
- Fill out the analysis request form


2) Bring your sample (1mg in a 2mL screw vial minimum), at the latest at 10:30 am on the day of the analysis, in the racks provided for this purpose in the mass spectrometry laboratory.

 

  • For organo-metallic chemicals and/or for sensible molecule (temperature, solvents, air...) and/or high mass (m/z >1000)

1) Book online with ChemProducts at the latest by 10:30am on the day of the analysis:
- Connect to ChemProducts https://www.chemproducts.universite-paris-saclay.fr/
- Click on "Booking" and then on "Booking".
- Click on Electrospray (ESI) et APCI - infusion [sur rdv pour les échantillons sensibles, les organometalliques, les m/z > 1000]
- Click on "Take an appointment"
- In the box, specify when and why you wish to make an appointment
- Fill out the analysis request form


2) Bring your sample (1mg in a 2mL screw vial minimum), at the latest at 10:30 am on the day of the analysis, in the racks provided for this purpose in the mass spectrometry laboratory.

 

For APCI analysis you need to :

1) Book online with ChemProducts at the latest by 10:30am on the day of the analysis:
- Connect to ChemProducts https://www.chemproducts.universite-paris-saclay.fr/
- Click on "Booking" and then on "Booking".
- Click on Electrospray (ESI) et APCI - infusion [sur rdv pour les échantillons sensibles, les organometalliques, les m/z > 1000]
- Click on "Take an appointment"
- In the box, specify when and why you wish to make an appointment
- Fill out the analysis request form


2) Bring your sample (1mg in a 2mL screw vial minimum), at the latest at 10:30 am on the day of the analysis, in the racks provided for this purpose in the mass spectrometry laboratory.

 

Results :

For ICMMO's staff the results are available on the mass server (How to connect - French version).
The results are sorted by team. An automatic e-mail is sent when a new result is available in your personal folder. 

The samples to be collected will be available in the mass spectrometry entry hall, sorted by team.

 

External services possible :

Please make an appointment by e-mail at masse.icmmo@universite-paris-saclay.fr and complete the analysis request form

 

Options

Liquid chromatography coupling is possible.