2D-GC-TOF-MS: USER REQUISITION FORM FOR SUBMITTING SAMPLES

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2D-Chromatography with time of flight mass spectrometer (2D-GC-TOF-MS) is an advance analytical technique for characterization of samples/compounds with high precision as compare to standard GC-MS systems. 2D GC-MS spectra gives increased peak resolution for faster, more confident peak identification and library match.
System comes with autosampler to facilitate high end separation of volatile organic compounds in highly complex mixtures and environmental samples. The two-dimensional output helps in resolving the peak of target analytes even when matrix interferences are present.
Make and Model: Leco, Pegasus 4D with Agilent GC.

Email *

Name *

Designation *

Student

Faculty

Scientist

E-mail ID *

Mobile Number *

Name of Research Guide/Head/Principal *

Affiliation with full address *

Nature of the samples (Organic, Soil, Plant) *

Analysis *

Standard

Method development

Sample Code *

Type of Analysis: (1D-Liquid Injection / Headspace) *

Solvent *

Boiling point of the analyte(s) °C *

NIST database at additional cost *

Yes

General Instructions and Guidelines

1. One sample refers to one injection in any of these modes. Multiple injections of the same sample will be treated as multiple samples.
2. All the samples will be analysed on the standard primary column: RXI-5ms, secondary column: RXI-17
3. Kindly, note that no injector or column change is not possible for this facility at this stage.
4. The experimental data provided is only for research / development purposes. These cannot be used as certificates in legal disputes.
5. A maximum 3 samples will be analysed against a single Registration Form.
6. The analytes expected in the samples should be clearly indicated and MSDS (Material Safety Data Sheet) should be given both for the solvent and the analytes to indicate the toxicity.

The samples should reach the ULMC along with duly filled Registration, Requisition form along with a copy of payment receipt.

Sample Preparation Guidelines:

1. The sample should be dissolved in a volatile organic solvents preferably hexane or isooctane (HPLC grade, in ppm level concentration.)
2. Sample volume: Standard injection= 3-5 mL, Method development = 15 mL.
3. Other solvents like, methanol, ethanol, ethyl acetate etc. can also be used.
4. Solvents such as DMSO, THF and water are not acceptable.
5. The boiling point of the sample should be below 2800C.
6. The sample should be free of particulates of size > 0.45 µm
7. Biomedical samples are not accepted for analysis.

Analysis results: The analysis result which includes the total ion chromatograph and mass spectrum will be emailed to the user.

Getting back the samples: Users desiring to get back the samples need to mark this instruction on the form. Collect them from the lab between 10.00 AM to 11:00 AM within two-three days of completion of the work (official working days only) and uncollected samples will be disposed-off after ten days of intimation of the completion of the work and no reminders will be sent.

Address of the Lab (for Sample Submission):
FRL-4, New Faculty Block E, School of Chemical Sciences, Goa University
Taleigao Plateau 403206
Contact Information: Send email to: gugctofms@unigoa.ac.in
Instrument Incharge: Dr. Pranay Morajkar (Phone: +91 8999765868)
Dr. Sandesh Bugde (Phone: +91 7972586044 )

A copy of your responses will be emailed to the address you provided.

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