Procurement of gas chromatograph in configuration for determination of pesticides in food and water

Дополнителни информации

Technical Specification:

1. Gas Chromatograph:

— Cooker;

— Oven temperature — minimum temperature of 50°C to a maximum temperature of 450 °C;

— Possibility of temperature adjustment — at least 0,1 °C;

— Number of programmable temperature ramps and plateaus — minimum 15 ramps and 16 plateaus;

— Maximum speed of temperature reaching the plateaus 120 °C / min.

2. Inlet Capillary electronic pressure control with the possibility of dividing the sample which is injected or directly injected in column:

— Margin capacity — Max. 1: 7 500;

— Maximum temperature: 400 ° C;

— Total gas flow in the capillary Inlet: 0 ml / min to at least 200 ml / min N2; 0 ml / min to at least 1 000 ml / min He or H2;

— Mode of operation: The ability to provide a constant flow and constant pressure;

— Method of introducing a sample: Split / split-less, pulsed Split / split-less;

— Adjustment pressure: Adjustment of 0,001 psi, with constant control of ± 0,001 psi to range from 0,000 psi to 99,999 psi;

— With built-in way of saving gas.

3. Automatic injector:

— Volume of syringes: 0,5, 1, 5, 10, 25, 50 and 100 μl;

— Variable depth of sample: -2 to +30 mm above the defined position;

— Rinsing of the syringe before and after injection: 0-15 rinsing with solvent A and / or solvent B;

— Rinsing syringe with sample: 0-15 washouts;

— Minimum and maximum injection volume: 0,1 μl (injection of 5 μl); 50 μl (100 μl syringe);

— Capacity of auto injector (2 mL vials): at least 14 samples carousel.

4. Selective detector for electrophilic compounds detector electron capture (ECD):

— Selective detector for electrophilic (organochlorine) compounds with the detector for electron capture;

— Limit of detection of the detector, the detector able to measure 5 fg / ml electrophilic compounds expressed by lindane;

— Recording speed: minimum 50 Hz;

— Electronic pressure control;

— To make up gas 0 ml / min to at least 150 ml / min nitrogen;

— Operating temperature of detector: 400 ° C to 450 ° C.

5. Column for organochlorine pesticides and PCBa:

— GC phase 608 0,25μm x0,25 mm x 30m.

6.Nitrogen-phosphorus detector (NPD):

— Selective detector nitrogen and phosphorus components with an active layer of glass detector;

— Limit of Detection of nitrogen components: detectors able to measure the 0,08pg N / s expressed by concentration of azobenzene;

— Limit of detection phosphor components: detectors able to measure the 0,01pg P / s expressed by the concentration of malathion;

— Recording speed: minimum 200 Hz;

— Electronic pressure control;

— For air 0 ml / min to at least 200 ml / min;

— The hydrogen 0 ml / min to at least 30 ml / min;

— To make up gas 0 ml / min to at least 100 ml / min;

— Operating temperature of detector: 400 ° C to 450 ° C.

7. Column for nitrogen phosphorus compounds:

— 14 % Cyanopropyl-phenyl-methylpolysiloxane 0,25μm x0,25 mm x 30m.

8. Software Control:

— Ability to gather data from the instrument via LAN communication, analysis and data processing, software control of the entire instrument;

— Compatible with Microsoft Windows operating system or equivalent;

— Software with the possibility of self-learning functions and operation of the instrument and help document that is part of the basic software;

— Built-in DRS — software decon volution spectral and RTL — software lock retention times;

— Embedded system with the possibility of early warning of possible errors, continuous monitoring instrument, registering regular system maintenance and registration of all repairs on the instrument.

Verification protocols to be included in the tender documentation and the price of the instrument to be included verification of the performance of the instrument for the 1

For more information please see: https://www.e-nabavki.gov.mk/PublicAccess/home.aspx#/dossie/c3714830-0483-4f83-a0f0-61a446b0b914/Open