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consult GC-MS report of unknown resin fossil

Question asked by Nikke Yue on Jan 2, 2017

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Dear ACS members

 

Due to previously I posted fully details stated ( consult  spectra analyze of SSNMR ) upload to ACS network till to now still nobody reply,

because SSNMR are the reliable instrumentation for identification , but three of university professor has inconsistence result

and the sample related organic chemistry, I think only chemical identify method can find out what material created the sample

 

Recently I sends the sample to Hong Kong Baptist University Chemical  Testing services for GC-MS identification and got

the result but still haven't concrete conclusion,  so I want  consulting with to ACS members, the below GC-MS report

can shows the sample are the  synthesis man- made product = common plastic ?

 

Now physical data , SSNMR spectra, if interesting please search ACS network ( consult spectra analyze of SSNMR ) , in this stage I only want to

clarify the sample are the natural or man-made product, the GC-MS report as below:

Thanks to ACS Chemist & members , for yours help I deeply appreciate from the bottom of my heart !

Regards   NIkke Yue    uafo@hotmail.com

 

 

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Nikke,

 

The GCMS screening by Dichloromethane as extraction solvent. The screening result as below:

No.

Retention Time (min)

Possible Compound

CAS No.

Matching Quality

1

5.18

Styrene

000100-42-5

93

2

8.76

Benzaldehyde

000100-52-7

91

3

47.07

Phthalic anhydride

000085-44-9

91

4

60.13

Dimethyl phthalate

000131-11-3

83

5

75.36

Phthalic anahydride

000085-44-9

72

6

77.17

Ninhydrin

000485-47-2

50

7

82.76

Phthalic anhydride

000085-44-9

86

8

107.41

Phthalic anhydride

000085-44-9

38

9

126.36

Benzofuran-2-one, 3-methyl-3-aza-2,3-dihydro

100028-91-2

38

10

201.15

1H-Isoindole-1,3(2H)-dione,2-(2-propynyloxy)-

004616-63-1

22

11

216.97

Phthalic acid, monoethyl ester

002306-33-4

50

12

220.19

Phthalic anhydride

000085-44-9

46

13

236.01

2-Aminoacetic acid, N-[4acetylphenyl]-

042288-24-4

35

There are major 13 peaks was found from screening.

4 compounds could match with our library ( Matching quality > 80%).

Since the file of each mass spectrum is too large, It would be send to you with the full report. The full report will send to you in this week.

 

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