Micro lysis sampler

1 Scope of application

TP-600slighttypeThe cracking sampler can be used in conjunction with various models of gas chromatographs. This system is mainly used for high polymersQualitative and quantitative detection of the internal structure of macromolecular samples. The use of this device can eliminate the complex sample pretreatment process in gas chromatography and serve as a special chromatographic analysis methodsample pretreatmentThe method has been widely applied and developed in fields such as petrochemicals, environmental protection, biomedicine, and forensic science due to its simplicity and practicality.

The appearance of the instrument is shown in the picture1-1As shown:

Figure 1-1TP-600Appearance diagram of the microcomputer based cracking sampler

Note:1Cracking injector host2Cracking pool3Cracking injector gas circuit box4Gas chromatograph

2 Main technical parameters

2.1 Temperature range of cracking pool: Above room temperature10～600℃, in increments10Set at ℃.

2.2 cleavageIndoor heating rateRate: 15℃/S.

2.3 cleavageroomTemperature control time: 0.1min～999minRen Shi

2.4 7-inch true color touch screen, built-in 10 storable method files

2.5 Repeatability of analysis results: ≤2%. (Polystyrene dimer).

2.6 Overall dimensions: 400mmX160mmX400mm (longXwideXtall).

2.7 maximumPower: 300W.

two install

This chapter provides a detailed explanationTP-600Please carefully read this chapter and follow the prescribed procedures before installing the operating conditions, installation procedures, and precautions for the computerized cracking sampler.

1 Unpacking inspection

After the instrument arrives, a visual inspection should be carried out first, by checking the outer packaging box to determine if there is any damage during transportation. When unpacking, if the instrument is found to be damaged, the transportation unit should be notified first, and then notifiedSales and manufacturing，Develop relevant response plans.

The user should receive the instrumentRefer to the packing list ormatchItem ListconductCheck, if anydifferencePlease immediatelyContact the manufacturer.

2 Instrument usage conditions(Preparation before installation)

2.1 environmental conditions

aAmbient temperature 10～35℃

brelative humidity ≤85%

cThere must be no flammable, explosive, or corrosive gases indoors, and there must be no strong air convection

dinstrumentThe main control chassis should be placed steadily, and the cracking chamber should be installed stably

2.2 Power requirements

aWorking voltage: ~220±22V

boperating frequency 50±0.5Hz

coperating current:≥10A

dground wirerequirementsRequire good grounding of the power supply

2.3 Gas source requirements

Purity of carrier gas:99.995%；carrier gasInlet pressure:≥0.3MP.

3 Installation and Connection

3.1 Placement position

The environmental requirements for the placement location can be found in Chapter of this chapter2.1Article.

This instrument is used in conjunction with a chromatograph for crackingThe chamber injection needle can be directly insertedchromatographInject the sample port, and then fix the gas path box of the cracking injector on the top plate of the chromatograph injection port, without loosening it.

3.2 Power installation inspection

According to this chapter2.2The requirement is to carefully inspectaccessIf the power supply does not meet the requirements, please replace it.

3.3 Air source installation inspection

The requirements for the gas source are outlined in section of this chapter2.3The provisions of the article; Due to the fact that the cracking sampler is used in conjunction with the chromatographPlease use the same gas source as the chromatograph.

3.4 Connection between the cracking tank body and the chromatograph

TP-600Cracking of Micro Cracking InjectorroomCan be connected to any type of domestic or foreign chromatograph. The steps are as follows:

Firstly, tightly connect the lysis injection needle to the lysis cell body through a nut. As shown in Figure 3-1.

2. ThenCracking chamber injection needleInsert into the chromatograph injector. Adjust the bracket position to make the pool body horizontalCover the cooling cap of the chromatograph injection port with the needle guard cap,fixedAirway box bottom plate.

3． The inlet joint of the carrier gas in the cracking device is located at the cracking pointLeft pneumatic boxOn the side, it can be connected to the carrier gas circuit of the chromatograph as needed or connected to the carrier gas circuit through a carrier gas switching valve. Please connect the carrier gas pipeline to the corresponding joint.

three instrument operation

After the installation and inspection of the instrument power supply are qualified and the system air circuit connection is completed, the system can be started.

1System leak detection

TP-600The computerized cracking sampler has undergone leak testing before leaving the factory, so there is no need to retest the gas system of this instrument; As this instrument is used in conjunction with a chromatography instrument, please carefully inspect the joints and piping system from the outlet of the high-pressure steel cylinder pressure reducing valve to the inlet of the instrument gas path, and ensure that the chromatography gas path system is leak free. Additionally, please checkChromatograph sampler injection padpresence or absenceair leakageIf damaged, please replace it.

2Adjust the flow rate

Open the high-pressure switch of the carrier gas cylinder, adjust the pressure regulator knob on the cracking device to control the carrier gas, so that the pressure value indicated on the meter head is greater than the pre column pressure of the chromatograph, and adjust the carrier gas flow rate according to the type of detector installed on the chromatograph.

3Set the working status of the chromatograph

According to the type of detector you are using、Column and sample type settings for analysisgoodThe chromatograph'sAnalyze the method to ensure that the chromatograph is ready for operation.

4Set the working conditions of the cracking sampler

Turn on the power switch (at the back) of the lysis sampler and useTouch the display screen to set the relevant lysis parameters, save them to the method file, and then call the method file.

5. Placementsample

When crackingroomAfter the temperature reaches the set value,Instrument displayWhen in the 'ready' state, will contain the sample to be testedPlace the sample quartz boat into the quartz tube of the cracking chamberMiddle, tighten the sealing plug clockwise.

6Injection analysis

pressDisplay screen main interfaceStart button，instrumentStart working according to the set conditions.

The instrument automatically performs the processes of sample blowing, analysis, injection, cleaning, and preparation for secondary analysis according to the method file settings for relevant temperature and duration.

4、 Instrument structure

This chapter explainsTP-600typetypeThe working principle, keyboard function and operation, gas circuit system and electrical control system of the cracking sampler. To assist you in operating this instrument normally, please carefully read the relevant sections.

1Working principle

a.By crackingroomThe instantaneous controllable high temperature heating effect causes the cracking reaction of solid polymer macromolecular samples to produce monomers (gaseous). Different polymers have different chain structures. By analyzing the characteristic products produced by cracking, the purpose of identifying and detecting the original polymer can be achieved.

b. Based on the quality of different samplesForm and structureSet the corresponding cracking temperatureandcleavagetime，For standard samples, reference can be made to the standard pyrolysis product spectrum and the given experimental conditions.

2 Keyboard Function Description and Operation

2.1Main interface:

2.2Upon powering on, enter immediately“Preparing...”State, raise and maintain the temperature according to the "preparation temperature" setting; After reaching and maintaining the 'preparation temperature', the status indicator displays“ready”Words.

2.3The status is“ready”Below, you can press“run”(Otherwise, it will run without any action), and the running time will start counting; At this moment, the status is displayed“Blowing in...”After blowing, enter“Running”The state and temperature are raised according to the set value of "analytical temperature"; When the temperature reaches the set value, enter“Parsing in progress”Status; After parsing, enter“Sample injection in progress”； After the injection is completed, enter“Cleaning in progress”Status; After cleaning, the status returns to“Preparing...”The program cools and maintains the temperature set according to the "preparation temperature", and the "running time", "analysis time", "injection time", and "cleaning time" are timed to zero, entering the preparation state for the next analysis preparation.

2.4Press the 'stop' button at any time, and the system will execute“Preparing...”Status parameters.

2.5Press the "Method" button to enter the following interface:

2.6Press the "Edit" button in the method settings interface to enter the following page:

Click on the blank space to set the corresponding parameters, and after setting, clickSave/Return "button, return to the previous interface, click the" Use "button in the method settings interface, the system will send the content of the method to the main interface for display, and then click" Save "/The 'Return' button returns to the main interface.

3 Schematic diagram of gas path connection:

4Circuit connection diagram:

five Common Fault Analysis

1 The fragmentation spectrum is very small or does not show any peaks The reason may be air leakage in the pneumatic system, please

Check the sealing gasket of the chromatograph and cracker

2 Poor reproducibility of fragmentation spectra The difference in sample size is too large

3 The high boiling point components of the sample are sensitive The temperature of the cracking tank body is too low

Low degree or disappearance

4 Excessive impurity peaks in the fragmentation spectrum cleavageroomTemperature too highOr the sample may be unclean

5Instrument electrical system malfunction, pleasecontact the manufacturer.

six Quality Three Guarantees Principle

This instrument is responsible for the maintenance and repair of the product in accordance with the three guarantee principle stipulated in the purchase contract.