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Da Vinci Laboratory Solutions (DVLS) was established as a laboratory support provider in 2000. Today Da Vinci has become the versatile partner to laboratories by offering chromatographic solutions that address all analytical challenges starting from sample preparation, analysis,reporting, data management up to providing technical support and supplies. Our mission is to boost laboratory efficiency through:
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Natural Gas Analyzer
DVLS NGA Analyzer GPA2286
The DVLS Natural Gas Extended analyzer combines on the front channel an efficient and accurate determination of the Natural Gas composition according to the GPA 2286 method. The system determines C1 through C4 hydrocarbons gases (and C5-C14 using the second channel) and inert gases. The back channel is configured for the analysis of higher hydrocarbons which has the ability to analyze up to C14. Separation Range:
The lowest detection limit (LDL) of the NGA Extended GPA2286 Analyzer is:
The DVLS Natural Gas Analyzer GPA 2286 is based upon the Agilent Gas Chromatograph and consists of:
Options
Sulfur Impurities in gas
Da Vinci Laboratory Solutions offers a Sulfur Components Analyzer based on an PFPD detector to determine sulfur compounds in gases according to ISO 19739. The analyzer determines individual volatile sulfur-containing compounds in gaseous fuels by gas chromatography (GC) using a pulsed flame photometric detector (PFPD).
The analyzer complies with ISO 19739 and has a detection range for sulfur compounds from 20 to 20 000 picograms (pg) of sulfur. This is equivalent to 0.02 to 20 mg/m3 or 0.014 to 14 ppmv of sulfur based upon the analysis of a 1-mL sample. The Sulfur analyzer is based on an Agilent Gas Chromatograph configured with:
Options
Refinery Gas Analyzer
Da Vinci Laboratory Solutions (DVLS) offers an automated gas solution to characterize the composition of refinery gases and liquefied gases under pressure such as LPG in 6 minutes. Next to determining the hydrocarbon content, permanent gases and hydrogen sulfide the RGA also reports calculation parameters such as Calorific and BTU Value.
ApplicationsThe DVLS RGA systems comply with the various standard test methods to determine the composition of the refinery and liquefied gases and to report the gas calculations.
Benefits
ConfigurationThe Refinery Gas Analyzer (RGA) is based upon the Agilent GC configured with dedicated columns, valves, inlet and detectors. Da Vinci developed a DVLS Side Carrier with heated zones containing the valves and columns. This unique design reduces the system downtime during the periodical regeneration of the separation column. The Agilent GC is controlled by the Agilent OpenLab software. The DVLS PetroReporter software automates all aspects of the calibration, gas analysis through customized data reporting. Examples of the included calculations are Liquid Volume, Molar Weight, Real Specific Gravity, CV, BTU etc. Options For a representative injection of liquefied gases the following options can be added to the RGA configuration:
LPG Analyzer
Da Vinci Laboratory Solutions offers an LPG Analyzer according to ASTM D2163, EN27491, UOP373 and UOP603.
Analysis of LPG Composition The LPG Analyzer designed by Da Vinci Laboratory Solutions (DVLS) characterizes the composition of refinery gases and liquefied gases under pressure. The GC system is built up in two separate channels with each channel his own detector. One channel determines CH4, CO and CO2 using micropacked columns and a Methanizer FID. C1- C5 hydrocarbons are measured on the other channel. All channels operate simultaneously to provide fast analysis. ApplicationsThe LPG system complies with ASTM D2163, EN27491, UOP373 and UOP603 to determine
The lowest detection limit (LDL) of the DVLS LPG Analyer system is:
ConfigurationThe DVLS LPG system uses an Agilent Gas Chromatograph configured with:
Mol%/Wt%/Vol% conversion, as well as specific LPG calculations are carried out using DVLS PetroReporter software. Options DVLS Pressure Station DVLS PetroReporter Impurities in Ethylene & Propylene Analyzer
To prevent poisoning of the catalysts it is essential to check the feedstock contaminants such as Arsine, Phosphine. Da Vinci developed a GC application to determine traces of Arsine, Phosphine & Permanent Gases in Ethylene and Propylene.
Applications The DVLS Impurities Analyzer determines traces of Arsine, Phosphine & Permanent Gases in Ethylene and Propylene. The typical working range of the permanent gas impurities is low ppmV to 100 ppmV and Arsine/Phosphine is low ppbV to 10 ppmV. Benefits
Configuration The Impurities in Ethylene/Propylene application is based upon an Agilent Technologies Gas Chromatograph
Low Oxygenates Analyzer
Da Vinci Laboratory Solutions offers an Oxygenates Analyzer to determine oxygenate traces in Hydrocarbon Matrices according to ASTM D7059, D7423 and D7754.
Trace Oxygenates Analysis The DVLS LowOx Analyzer contains a PTV inlet with backflush to detect the oxygenate traces with the FID detector. The use of the PTV inlet with backflush configuration allows to backflush the heavier matrix components without contaminating the inlet and columns. Ethylene is injected by a Gas Sampling Valve. Injection of liquefied gasses can be done either by a Liquid Sampling Valve or Gas Sampling Valve. A Pressure Station is used for sample handling prior to the analysis. Liquid samples are injected by the Automatic Liquid Sampler. The sample will be separated using an pre-column followed by an analytical column and by using a heart cut deans switch. The oxygenates will then be separated by carbon number. Pre-column and the analytical column are linked. High boiling point compounds are retained in the pre-column. Oxygenates and low boiling point hydrocarbon elute into analytical column. Oxygenates are trapped at the front of the analytical column. The high boiling compounds are then transferred to the monitor column and detected by the FID. Applications
Configuration The DVLS LowOx Analyzer is based upon the Agilent Gas Chromatograph configured with:
Automatic Air Monitoring Analyzer
Measurements of atmospheric concentrations of volatile organic compounds are currently required in both urban and rural environments, where their presence can be directly detrimental to health. The DVLS Automatic Air Monitoring Analyser (A2MA) Provides in situ Analysis of VOCs in Urban Air.
Automated in situ determination of VOC's The A2MA instrument has been developed for the automated in situ determination of airborne volatile organic compounds (VOCs) using programmed temperature vaporisation injection from a sorbent tube trap. A sorbent tube placed as an injection port liner can be repeatedly used to collect samples of air, with the trapped analytes being subsequently desorbed onto a capillary gas chromatography (GC) column without use of intermediate cryogenic refocussing. The automation of sample collection and the elimination of the intermediate refocussing step, reduces much of the necessary on-site maintenance required for continuous monitoring, and allows in situ analysis in locations where previously this was not possible. Configuration
Benzene in Air Analyzer
To determine Benzene in air Da Vinci Laboratory Solutions developed an automated Gas Chromatographic solution equipped with an unique gas sampling unit that allows the sampling up to 8 gaseous samples.
Analysis of benzene in air The Benzene in Air application is based on an Agilent Technologies Gas Chromatograph configured with a sampling unit that uses a sampling pump, a mass flow controller and a multi-positioning valve. The multi positioning valve allows sampling direct from e.g. a Tedlar bag or taking sample directly from open air. Up to 8 samples or standards can be automatically selected and analyzed. Collect the samples in Tedlar bags and use the stream selection valve to select either standards, samples and/or multiple samples for an automated analysis. The system’s PTV injection port is modified to contain a sorbent tube as injection port liner which ensures a rapid adsorption and desorption of Benzene. Alternatively collect the sample on a sorbent trap using a programmable sampling pump. The sorbent trap is placed in the PTV inlet and automatically purged prior to thermal desorption and subsequent analysis. The gas sampling unit automates the process of sampling, adsorbing and desorbing. After benzene has eluted from the precolumn to the polar column, the remainder of the matrix is backflushed to vent. The Benzene in Air analysis requires 25 minutes. Benefits
Applications
The Benzene in Air application shows an excellent performance as demonstrated in the tables using a custom calibration gas standard. Table One: Detection limits of Benzene in Air.
Table Two: Repeatability of Benzene in Air
Options The analysis can be extended to determine BTEX in Air. To extend the analysis to C6-C8 aromatic compounds (BTEX Analysis) just switch the backflush after elution of o-Xylene. Liquefied Gas Injector
The Liquefied Gas Injector (LGI) has been standardized as ASTM D7756 and EN 16423 for the analysis of residues in liquefied petroleum gases by gas chromatography. Adapting the hardware setup allows to extend the LPG analysis to a wider application range.
Sampling and analysis of liquefied gases The direct injection approach of the Liquefied Gas Injector includes the proven fuel direct injection technique used by the automotive industry to inject fuel into the automotive engine combustion chamber. The LGI is connected to a standard GC injector needle, which is inserted into a GC large volume on-column injection system. Solenoid activation transfers the pressurized sample through the needle directly on-column. A sliding device moves the needle downwards for the injection and upwards for purging. To allow a representative sample injection a Pressure Station is used to keep the sample in a liquid phase during the injection. The sample cylinder is installed using quick connectors. For liquid samples the Pressure Station adds high pressure Nitrogen to the sample cylinder and controls the outlet pressure and flow. Optionally the Pressure Station can also be configured for gas samples by including a vaporizer to control the sample evaporation after injection. The waste sample is vented to a central waste system to ensure laboratory safety. Applications The DVLS Liquefied Gas Injector offers laboratories a safe, reliable and efficient GC standard for the following applications:
Benefits
Options
Pressure Station
The DVLS Pressure Station allows a representative sample injection of a liquid or gaseous hydrocarbon stream. The pressure station injects the sample into a GC system and keeps the pressure at a constant level. The Pressure Station is included in the DVLS Liquefied Gas Injector.
Injection of a representative amount of liquids & gases For a representative analysis, the sample must remain in the liquid phase during the injection process, this is especially required for LPG or other chemicals that are gaseous at ambient pressures. The DVLS Pressure Station keeps the sample under pressure by adding high pressure Nitrogen to the sample cylinder and controlling the outlet pressure and flow. High SafetyThe sample container is installed on the front side of the pressure station using the quick connectors. The station keeps the pressure at a constant level. The waste sample is vented to a central waste system or to a waste line that leads the vapor directly outside the building to ensure the lab safety. Applications The Pressure Station adds high pressure Nitrogen to the sample cylinder and controls the outlet pressure & flow. This technology has been proven in several applications that require a representative sample injection, such as:
Benefits
Configuration The design of the DVLS Pressure Station offers you a high flexibility. Select from the following configuration options to fully meet your requirements:
Options DVLS Liquefied Gas Injector |