Obtaining the required mass spectra

Obtaining the required mass spectra

In automated service, please follow the requirements detailed below. For the practical organization of more extensive experiments and cooperation requests, please follow the arrangements adreed beforehand with Dr. Birkemeyer.

1. Sample preparation: Fill ~ 1 mg of the solid substance  into a labelled 1.5 mL autosampler vial suitable for ESI measurements (see MS Service Manual). Samples suitable and intended for EI can be delivered as powder in small sample vials. For air-sensitive samples please use a closed-by-melting glass capillary (EI) or a Schlenk (ESI). The sample vessel must meet the required safety standards with regard to the hazard posed to our employees when handling the sample. If in doubt, please contact us before submitting the sample. On request, laboratory space can be made available to a certain extent for filling in suitable vessels and the application of purification steps for special MS analyses.

2. Download the service form from our homepage and fill it out carefully or enter your order online via our web mask. The following sample-specific characteristics are particularly important:

  •    relevant safety precautions
  •    expected structure and sum formula
  •    Molecular weight (mono-isotopic!)
  •    for EI: boiling point, if known
  •    Synthesis path (for the interpretation of interference peaks)
  •    Don't forget to include contact information (phone number, email address!) and date!

3. Please tick the required ionization technique, or leave the field blank to let us select the appropriate method.

4. Please care for appropriate packing of air-, light- or temperature-sensitive samples (see point 1 or in aluminium foil), make a corresponding note on the sample form and make an appointment befor you hand it in.

5. Do not hesitate to contact us if you have any open questions!

6. Place the sample(s) labelled with the short name of the sample together with the service form (not applicable for web form) in the blue rack on the "Sample delivery" shelf in front of the laboratory 173A (Technikum/Analytikum, Linnéstr.3) or send it by post to:

Servicegruppe Massenspektrometrie Institut für Analytische Chemie Fakultät für Chemie und Mineralogie Johannisallee 29 04103 LeipzigGermany

7. Samples will be processed according to the ionisation method and their delivery date and are usually measured within 1 to 3 working days at the latest.

8. Please collect the measured sample from the rack in front of room 173A as soon as possible. Remaining samples will be disposed after latest one month. On request, an agreement on material transfer can be arranged.

9. If a spectrum does not show the expected signal or isotope pattern,we redirect your sample to an alternative ionization technique which usually extends the processing time to 3-7 working days.

10. Raw data added by an automatically generated pdf report can be downloaded as a zip file from our server. The data server can be reached with a VPN and a FTP program at spekserv.chemie.uni-leipzig.de; please obtain the required access from your working group or on request from us.

11. Please don't hesitate to contact us in case of problems or questions regarding your evaluation.

 
We look forward to your feedback and recommendations for improving our services.

Telephone hotline for all queries of an organizational nature: 0341-97-36095, -36077 (Mrs. Oehme or Mrs. Billig)

Cooperation, inquiries and special advice: 0341-97-36092 (Mrs. Birkemeyer)

last modified: 16.06.2020

Contact

Head of the service group
Dr. Claudia Birkemeyer
Technikum-Analytikum
Raum 211
Linnéstr. 3
04103 Leipzig
Germany

Phone: +49 341 97 - 36092
Fax: +49 341 97 - 36115
E-Mail