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In February of this year, Shimadzu introduced Tracera, a high-sensitivity gas chromatography system. Tracera received attention from the industry as soon as it was launched.
Tracera is built on the Shimadzu GC-2010 Plus platform. The biggest innovation is the fusion of the newly developed Dielectric Barrier Discharge Plasma Detector (BID). According to Wen Huanbin, “In the traditional case, when gas analysis is performed, it is often necessary to configure the system gas phase of multiple detectors such as FID and TCD. The instrument structure is complex and the analytical sensitivity is limited. When analyzing liquid samples, it is often necessary to use different compounds. Replaced with different detectors, many substances, such as formic acid, formaldehyde, water, etc., we can not use FID analysis, this time will use TCD, but TCD has the problem of insufficient sensitivity, there are traces of halogen-containing compounds, on the FID The response is also very small, which has to be replaced by ECD detectors for analysis. In short, these factors will affect the effectiveness and efficiency of our experiments. It is against this background that Shimadzu has developed BID detector technology, BID can simultaneously analyze inorganic gases and organic Gases can also analyze liquid samples with higher sensitivity than FID and TCD, and BID detectors can meet requirements for complex analysis that previously required the simultaneous use of FIDs and TCDs.BID detectors are Shizuo and Osaka University Katsuhisa Kitano Research results of the doctor's cooperation, Osaka University developed micro-plasma technology five years ago, and Shimadzu took its business. Technology, combined with Shimadzu gas chromatograph Release. Currently, BID detector has received three U.S. patents, there are four patents in the approval. "
The BID detector mainly has the following three characteristics:
(1) High sensitivity. The BID detector can generate helium plasma with very high photon energy. The helium plasma can ionize sample components for high sensitivity analysis. This system is more than 100 times more sensitive than TCD, more than twice as sensitive as FID, and it can meet the analysis needs of all types of trace components at the level of 0.1 ppm.
(2) High versatility. A single detector solution easily handles complex analysis needs. BID detectors can meet the analysis requirements of all organic and inorganic compounds except helium and neon. For example, FID detectors respond well to compounds containing CH bonds and are ideal for hydrocarbon analysis. However, FID detectors do not respond to carbonyl carbon (C=O) compounds, so formic acid and formaldehyde cannot be analyzed. In addition, FID does not respond well to compounds containing hydroxyl groups (-OH), aldehyde groups (-CHO), and halogens (F, Cl, etc.). In comparison, the BID detector can greatly increase the sensitivity of the above compounds, and the sensitivity is relatively uniform.
(3) High stability. An important feature of the BID detector is the dielectric barrier discharge. The low-frequency power is used to discharge from the external electrodes of the insulating medium to generate a low-temperature helium plasma near room temperature without any contact with the electrodes. Therefore, the electrodes need not be in a high temperature environment, so that “sputtering†damage is avoided and electrode aging does not occur.
In addition to these three features, the BID detector uses only helium and does not require a hydrogen flame. Therefore, for laboratories with limited FID detectors, the BID detector can be used safely and securely.
Currently, there are other suppliers on the market that offer the same type of products and talk about the advantages and differences of BID detectors. Wen Huanbin said, “The BID detector uses a lot of Shimadzu original technology: First, the BID plasma generating site uses AC discharge, While other similar products mostly use DC discharge, the stability of the AC discharge-generating plasma is relatively better.Secondly, BID uses a dielectric barrier discharge technology. This durable structure design allows the BID detector to maintain a stable analysis state for a long period of time. No instrument maintenance or consumable replacement is required.Third, structurally speaking, the BID uses an optimized dual purge flow path design. Compounds flow from the purge flow path 2 and do not reach the plasma generation chamber, so they do not Pollution Detector Pool. This design minimizes the effect of the flow path on the detector response."
Regarding market positioning, Wen Huanbin said, “BID is a high-sensitivity universal detector. It is mainly applied to trace and micro-analysis. It can make up for many deficiencies in the use of FID or TCD. For conventional analytical experiments, it can be simple. The use of FID or TCD is generally recommended as a general detector, but if the conventional detector can not meet the requirements, or need to use FID and TCD together, the operation is very complicated, we recommend the user to select the BID detector, Once you have selected the right column, you can use a BID detector, which can give analysts a different analytical experience. Currently, the BID is a Shimadzu gas chromatography standard detector that can be configured for sale. Additional configurations can be added later. Existing users of all GC-2010 Plus can additionally configure the BID detector."
“In the past, BID detectors of this type have been considered to be more delicate, with longer purge times and higher costs. Today, the introduction of the BID may make this type of detector closer to the user, and with similar products. In comparison, the stability of the BID detector is shorter, so the user experience is better and it is easier to popularize this type of detector, said Wen Huanbin.