List of papers This thesis is based on the papers listed below, which are referred to in the text by Roman numerals I-V. Neuropeptidomics: MS applied to the discovery of novel peptides from the brain. An automated method for scanning LC-MS data sets for significant peptides and proteins, including quantitative profiling and interactive confirmation. Striatal proteomic analysis suggests that fir...

Mục tiêu: Xây dựng quy trình định lượng đồng thời naringin và hesperidin trong quả bưởi non bằng LC-MS/MS. Đối tượng phương pháp: Naringin non. Quy được xây thẩm pháp sắc ký lỏng đầu dò MS/MS. Kết quả: Điều kiện ký: cột C8, pha động methanol – acid acetic 0,1% (50 : 50), tốc độ dòng 0,6 ml/phút, nhiệt 30oC, buồng tiêm mẫu 10oC, thể tích 5 μl phát hiện MS/MS ở chế ESI (-), MRM. đạt các chỉ tiêu ...

Modern determination techniques for pesticides must yield identification quickly with high confidence for timely enforcement of tolerances. A protocol for the collection of liquid chromatography (LC) electrospray ionization (ESI)-quadruple linear ion trap (Q-LIT) mass spectrometry (MS) library spectra was developed. Following the protocol, an enhanced product ion (EPI) library of 240 pesticides...

Ginger (Zingiber officinale R.), lemon (Citrus limon L.) and mint (Mentha sp.) are commonly consumed medicinal plants that have been of interest due to their health benefits purported antioxidant capacities. This study was conducted on the premise no previous has performed elucidate phenolic profile ginger, herbal tea infusion (GLMT). The aim investigate characterise contents lemon, GLMT, as we...

use by the OPCW inspectorate. Use of GC with one or more spectrometric technique such as mass spectrometry is required to conRrm the presence of chemical warfare agents. For this reason many analyses are carried out by GC-MS under electron impact or chemical ionization conditions. For analyses involving low levels of chemical warfare agents in the presence of high levels of interfering chemical...

A 55-year-old man came to the hospital with a bleeding wound on his tongue. The coating of his tongue was green, and his sputum was red. Because an increased international normalized ratio-value was measured, a blood sample was sent to our laboratory with the suspicion of coumarin intoxication. Liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) analysis confirmed the po...