Method for pretreating aqueous solution containing organic amine compounds and determination method
An aqueous solution and pretreatment technology, applied in the field of detection and analysis, can solve problems such as reducing the service life of expensive capillary columns, affecting the accuracy level of detection and analysis, and failing to solve problems such as sulfate, so as to reduce maintenance frequency, reduce clogging, and reduce solution alkalinity. Enhanced effect
- Application Information
AI Technical Summary
Problems solved by technology
 Pretreatment to prepare sample solution of organic amine desulfurizer solution
 Measure 80mL of organic amine desulfurizer solution (hereinafter referred to as original sample 1) into a 250mL Erlenmeyer flask, add 10g of solid sodium hydroxide and cover with a stopper, shake to dissolve and adjust the pH of the solution to > 11; continue to shake the conical flask vigorously bottle for 3 minutes to promote a sufficient chemical reaction between sodium hydroxide and the interfering components in the desulfurizer, filter and separate the metal hydroxide precipitate, collect the filtrate in a 150mL volumetric flask, and wash the Erlenmeyer flask and metal hydride three times with 15mL of water The oxide precipitates, and the washing solution is collected in the original filtrate, diluted with water to volume, and shaken up.
 The filtrate was transferred to a 250mL Erlenmeyer flask, placed in a refrigerator freezer, and kept frozen for 1.5 hours at a low t...
 Measure 120mL of organic amine desulfurizer solution (hereinafter referred to as original sample 2), add 20g of sodium hydroxide to adjust the pH>11; shake for 5 minutes, filter the metal hydroxide precipitate and wash the Erlenmeyer flask and the precipitate with 20mL of water 5 times . The filtrate was frozen at 3°C for 2.5 hours. Except for this, the rest were carried out in the same manner as Example 1 to prepare the sample solution to be tested, and sample solution 2 was obtained and determined by GC-MS.
 Measure 100mL organic amine desulfurizer solution (hereinafter referred to as original sample 3), add 15g sodium hydroxide to adjust the pH>11; shake for 4 minutes, filter the metal hydroxide precipitate and wash the Erlenmeyer flask and the precipitate 4 times with 18mL water . The filtrate was frozen at 7°C for 2 hours. Except for this, the rest were carried out in the same manner as Example 1 to prepare the sample solution to be tested, and the sample solution 3 was obtained and determined by GC-MS.
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction