Device and method for carrying out acidolysis by adopting I-type glass tube

Abstract

The invention provides a device and a method for carrying out acidolysis by adopting an I-type glass tube. The device comprises the I-type glass tube for providing an acidolysis reaction space, a magnet, a magnetic stirrer, a sample boat for storing samples, a connecting joint arranged at a top tube opening of the I-type glass tube and a magnetic stirrer, wherein an acidolysis reaction solution iscontained in the I-shaped glass tube, the magnet is located on one side of the outer wall of the I-shaped glass tube, the magnetic stirrer is located on one side of the inner wall of the I-shaped glass tube, and the magnet and the magnetic stirrer are attracted and fixedly arranged on the I-shaped glass tube. The sample boat is placed in the I-shaped glass tube in a manner that an opening is upward, and the sample boat is supported on the magnetic stirrer; by adopting a symmetrical structure, on the basis of ensuring the quality of experimental data, the operation is simpler and more convenient, the experimental process is greatly simplified, and the risk of experimental failure is reduced.

Description

technical field [0001] The invention relates to a device and method for acid hydrolysis using Type I glass tube. Background technique [0002] Carbonate rocks are widely distributed in nature and are important information carriers for studying carbon cycle, global change, paleoenvironment and paleoclimate evolution. Carbon, oxygen and cluster isotopes of various carbonate minerals are powerful and commonly used geochemical proxy indicators for studying their material sources and formation environments (such as temperature, salinity, etc.). Since the 1950s, the traditional phosphoric acid method (CaCO 3 +H 3 PO 4 =CaHPO 4 +CO 2 +H 2 O) has been the standard analytical procedure to obtain the carbon, oxygen and cluster isotopic compositions of carbonate minerals (Ghosh et al., 2006; McCrea, 1950). This analytical process consists of acid hydrolysis of carbonate minerals, generation of CO 2 The purification and isotope ratio analysis are composed of three steps, and the...

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Problems solved by technology

[0008] (3) After the Y-tube acidolysis device reaches temperature balance, it is necessary to tilt the device to allow the acid to flow into the loading arm, thereby triggering the acidolysis reaction; The sample reaction is carried out in the state of the vacuum pipeline (it is very inconvenient to operate the acid hydrolysis device on the vacuum pipeline), so that the Y-shaped tube acid hydrolysis device must be connected to the vacuum pipeline twice to complete vacuuming, sample reaction and CO 2 The purification operation is slightly cumbersome in operation, which increases the risk of operational errors. In addition, the steps and time of the experiment will be prolonged, and the error rate of the experiment and the energy consumption of the experimenters will also be increased.

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