Hình đại diện của rajshreerathor23
Cờ của India Gurgaon, India
Làm thành viên từ 24 tháng 5, 2019
0 Đề xuất


Trực tuyến Ngoại tuyến
I have six year experience in data entry, writing research proposals which included drafting a research proposal, collection of data, analyzing the data using analytical instruments and writing the research papers
$10 USD/hr
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  • N/ACông việc đã Hoàn thành
  • N/AĐúng ngân sách
  • N/AĐúng hạn
  • N/ATỉ lệ thuê lại


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Trải nghiệm

academic writer

Sep 2013 - May 2019 (5 years)

Have more than 5 years experience in data entry, typing in MS WORD and MS EXCEL and writing research articles.

Giáo dục


2013 - 2019 (6 years)

Bằng Cấp

UGC-JRF (2019)

University Grant commission

Qualified national level eligibility test twice. Also awarded with junior research fellowship for 5 years to persue the research work.

Các xuất bản


The present study aims to distinguish the blue, black, red and green gel pen inks on the basis of their chemical constituents using HPTLC and GC-MS. The results obtained from Gas Chromatography Mass Spectrometry found to be more discriminating than High Performance Thin Layer Chromatography. The major advantage of present study is limited damage caused to the document.

Differentiation of Red and Black Ballpoint Pen Inks using HPTLC and GC-MS

The present study aims to analyse the red and black ballpoint pen inks using HPTLC and GC-MS techniques. All samples have been completely differentiated using high performance thin layer chromatography. The discrimination potential of gas chromatography mass spectrometry for red and black ballpoint pen inks was found to be 32.85% and 63.58% respectively. The validity of technique was tested in terms of repeatability and reproducibility.

Identification of volatile components of gel-pen inks through gas chromatography-mass spectrometry

This study analyzed and identified the volatile components of 90 colored gel-pen inks of Indian origin through GC–MS. Approximately 245 components were identified and classified into a wide range of categories such as alcohols, aldehyde and ketone, esters, ethers, hydrocarbon, and miscellaneous; this categorization reduced the risk of false matches during comparison. Few components were found to be common in all ink colors, whereas some components were color-specific.

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