On June 4, 2015, the Official Journal of the European Union (OJ) issued the RoHS2.0 Amendment Directive (EU) 2015/863, which officially included DEHP, DBP, BBP, and DIBP in the list of restricted substances in Appendix II. So far, there are ten items in Appendix II Mandatory Controlled Substances,
See the table below for details:
After the release of this revised directive, EU member states need to approve and issue laws, regulations and administrative regulations that comply with the directive before December 31, 2016, and the relevant regulations should be implemented from July 22, 2019.
Phthalate plasticizer is a modified material widely used in food packaging, toys, children's products, PVC building materials, medical equipment and clothing.
Since phthalate plasticizers do not form bonds with substrates such as plastics and rubber, they maintain their independent chemical properties. Therefore, it will dissolve when it comes into contact with water and oil. Phthalates are toxic to reproduction, as well as mutagenic and carcinogenic.
Therefore, the RoHS 2.0 directive stipulates that BBP, DIBP, DBP, and DEHP are currently contained in plastic products, rubber, textiles, toys, and children's products, and the content of these four phthalate plasticizers must not exceed their parts specified content. Contents higher than the specified shall not be exported to European and American countries.
At present, GC-MS is the most widely used detection technology, but GC-MS detection has long retention time, poor resolution, unsatisfactory peak shape, and GC-MS is expensive, which makes manufacturers bear a large amount of money burden. Junhuiteng Technology has conducted a lot of technical research in response to this directive, and has made corresponding improvements to the company's products. It has provided these 4 kinds of hazardous substances to domestic enterprises, and can be extended to solutions for other hazardous substances. From the experimental results, the solution provided by our company has better separation effect, stable chromatographic baseline, regular and beautiful peak shape, simple chromatographic peak processing, no interference before and after the peak, and other coexisting harmful substances can be detected together , with high precision and accuracy.
The relevant spectra are as follows: Figure (1) is the standard solution of plasticizers: the four plasticizers are completely separated
Figure (1) is the plasticizer standard solution: 4 plasticizers
1. It is equipped with JHT test V chromatographic software to realize the computer control of the whole process of the instrument, reduce the error of manual sampling and improve the accuracy.
2. The infusion pump, column thermostat, detector, etc. all have real-time leakage alarm and monitoring functions, providing guarantee for users to realize unattended operation.
3. The function of automatic cleaning of the plunger rod realizes automatic online cleaning and reduces the loss and failure rate of the instrument.
4. Equipped with Shimadzu automatic sample injector to realize 24-hour unmanned automatic test. With the data batch processing function, it can effectively reduce the manual workload.
5. The appearance of the whole machine adopts piano paint, two-color indicator light, keyless design, beautiful and generous.
6. JHT test V chromatographic workstation is specially designed for RoHS testing, with simple operation and human-computer interaction.
7. The whole machine is equipped with a degasser module to avoid bubbles generated by the sampler or gradient mixing, reduce baseline noise and baseline drift.
8. Realize complete separation of o-benzene 4P spectrum peaks, improve qualitative and quantitative accuracy.
9. The chromatographic data processing system has strict authority management functions, and the built-in database manages data, which can realize audit trail, ensure the safety and reliability of data, and comply with relevant regulations.
Model: LC-2800G Plus
1. The flow cell designed with parallel double cone holes greatly improves the signal-to-noise ratio and the detection effect is better;
2. Power-on self-test function, through the positions of 254nm and 350nm on the map, to judge the accuracy of the wavelength indication error, to ensure excellent wavelength accuracy, and to ensure the best state of the instrument;
3. The control circuit uses a high-performance processor, and the software is controlled by a multi-tasking program, which can realize functions such as switching on and off the deuterium lamp, scanning the spectrum, and starting the analysis program.
4. Digital signal output mode, to avoid distortion and interference caused by the signal; full digital filtering, reduce baseline noise and drift, improve signal-to-noise ratio and anti-interference ability;
5. It can realize the time-wavelength program, has the function of automatic baseline zeroing, real-time switching operation of online analysis wavelength, and can obtain the maximum sensitivity of the determination of compounds with different absorbance;
6. Static wavelength scanning, which can scan the spectral information of the sample, obtain the characteristic ultraviolet spectrum of the unknown compound, and obtain the characteristic wavelength of the unknown compound;
7. The unique deuterium lamp heat dissipation design can effectively reduce the thermal effect of the deuterium lamp and reduce the baseline drift.
8. Meet the GLP requirements, with automatic recording of instrument error reporting, parts replacement, deuterium lamp usage time and other recording functions;
1. The floating plunger installation method is adopted, which greatly prolongs the service life of the plunger rod and the sealing ring; the double-plunger reciprocating series pump design greatly reduces the failure rate of the pump check valve (by 50%), effectively saving maintenance costs;
2. The design of the floating plunger rod driven by a small cam greatly reduces the infusion pulsation and improves the flow accuracy; the double pump head design greatly reduces the pressure pulsation of the pump and increases the infusion stability;
3. The material of the pump head is all imported 316L stainless steel, which has strong wear resistance and corrosion resistance; the pump head is external for easy maintenance.
4. The sealing ring is made of a new polymer material with good corrosion resistance and good sealing performance, which prolongs the service life of the sealing ring and piston rod;
5. The peristaltic pump has the function of automatically cleaning the plunger rod. Users can set different cleaning schemes to realize automatic online cleaning; the plunger rod is automatically retracted to facilitate the replacement of the sealing ring;
6. Process detection and alarm function, real-time display of operating parameters;
7. The flow rate range that can be set is 0.001~9.999mL/min, and the increment is 0.001mL/min
8. Flow accuracy: ≤0.2%; flow precision: ≤0.06%
10. Pressure range: 0~42MPa; display pressure error: ≤0.5MPa; upper and lower limits can be set, and automatic alarm can be set
11. Pressure pulsation ≤ 1.0%
12. Gradient mixing accuracy: ±0.5%
13. Gradient mixing precision: ±0.1%
14. Size: 350*470*160mm
15. Weight: 18kg
3.3 Anti-control column thermostat
1. Chromatography workstation anti-control column thermostat, real-time temperature display.
2. Temperature control range (oC): from room temperature to 100oC;
3. Upper limit temperature protection (oC): 110 oC;
4. Temperature control accuracy (oC): ±0.1;
5. Temperature stability (oC): ±0.1;
6. Size: 350*470*160mm
7. Weight: 11kg
3.4 Software Workstation
1. Instrument control, including the control of various parameters of instruments such as pumps, detectors, autosamplers, and column thermostats, and the instrument realizes full reverse control;
2. Status feedback, which can provide real-time feedback of the status of the pump (flow, pressure), detector (wavelength, lamp on/off status, running time, number of times of opening, energy, etc.), column thermostat (real-time temperature display);
3. Baseline monitoring, sequence analysis, data processing, report printing and many other functions can be realized through software to realize software analysis automation
4. The chromatographic data processing system has strict authority management functions, and the built-in database manages data, which can realize audit trail, ensure the safety and reliability of data, and comply with relevant regulations.
4. Injection accuracy: full quantitative loop < 0.3% RSD , the injection volume is greater than 5 uL ; semi-quantitative loop < 0.5% RSD , the injection volume is greater than 5 uL ; microliter < 1.0% RSD, the injection volume is greater than 5 uL ;
4. 1 Standard accessories
4. 2 Pre-processing equipment configuration (the standard configuration will be adjusted for different application industries)
4.3 Peripheral equipment configuration (optional)
1. Product warranty is 12 months and lifetime maintenance
2. From pre-sales, sales to after-sales, provide customers with thoughtful technical support services.
3. Pre-sales consultation: pay attention to customer application needs, provide reasonable and professional solutions, and invite customers to experience operations on site.
4. On-site installation training by professional engineers, training content: background of harmful substances, instrument operation to report, daily maintenance and cleaning of instruments, laboratory operation specifications and waste liquid treatment, sample classification and rating.
5. Operation training: Provide a complete product manual, with graphic and video version tutorials, and a professional after-sales WeChat public account. A training class is held every 1-3 months. Customers can come to receive professional training for free.
6. Customer return visit: Return to customers every quarter, listen to customer suggestions, and help customers solve problems encountered in the actual operation process.
7. Service response: 4 hours response, 24 hours to solve problems or provide spare equipment for use.
8. Upgrade service: Provide free software upgrade service for customers for life.
Comprehensively provide detection and control solution services for various environmental protection directives, and can provide unlimited scalability.
According to the user's needs and the specific requirements of the controlled materials, combined with the technical characteristics of HPLC analysis, the instrument analysis method is incorporated into the user's quality control system to provide the user with the best testing plan and assist in the establishment of material acceptance standards; and provide risk analysis for special materials Methods.