Tenders Are Invited For Laboratory, Optical And Precision Equipments (Excl. Glasses) – Delivery Of A Kit For The Analysis Of Particle Size, Zeta Potential And Molecular Weight To The Institute Of Agrophysics. B. Dobrzański Polish Academy Of Sciences In Lublin – 1 Set

Laboratory, Optical And Precision Equipments (Excl. Glasses) – Delivery Of A Kit For The Analysis Of Particle Size, Zeta Potential And Molecular Weight To The Institute Of Agrophysics. B. Dobrzański Polish Academy Of Sciences In Lublin – 1 Set. The Subject Of The Order Is The Supply Of A Set For The Analysis Of Particle Size, Zeta Potential And Molecular Weight To The Institute Of Agrophysics. B. Dobrzański – 1 Set. A Detailed Description Of The Subject Of The Order Is Included In Annex No. 1 To The Swz. No. Required - Minimum Parameters: Condition: 1. Particle Size, Zeta Potential And Molecular Weight Analyzer: Necessary Condition 1.1. Laser Analyzer Measuring The Size, Particle Size Distribution, Molecular Weight And Zeta Potential Based On Dls, Sls And Els Techniques Of Humic Acids And Their Artificial Equivalents In Solutions Of Different Ph And Ionic Strength. Necessary Condition 1.2. Light Source: He-Ne Laser With A Wavelength Of 635±3 Nm Or A Semiconductor Laser With A Wavelength Of 655±3 Nm. Necessary Condition 1.3. Optical Filters: Fluorescent, Vertical And Horizontal Polarization Necessary Condition 1.4. Measuring Temperature Range At Least From 0C To 100C Necessary Condition 1.5. User Manual In Polish And English Necessary Condition 1.6. Availability Of Spare And Consumable Parts, As Well As Service Support For At Least 10 Years From The End Of The Warranty Period. Necessary Condition 1.7. Minimum 36-Month Warranty - Applies To The Particle Size, Zeta Potential And Molecular Weight Analyzer. Necessary Condition Attention! Criterion For Evaluating Offers 1.8. Two Training Courses: Each Of A Minimum Of 6 Hours In Polish And For A Minimum Of 3 People, Including The Second Training Conducted Within 12 Months Of The First One. Necessary Condition 1.9. Warranty Service With Response Time To Notification - A Maximum Of 48 Hours, In Accordance With The Draft Contract. Necessary Condition 1.10. Particle Size Measurement: Necessary Condition 1.10.1. Measurement Based On Dynamic Light Scattering (Dls), For A Particle Size Range Of At Least 0.3 Nm To 15 Μm; Three Different Detection Angles: 15, 90 And 175 Or Equivalent (With A Deviation From The Given Angles Of No More Than ±2) Selected By The User, Including Measurement Technology In The Multi-Angle Dynamic Scattering Mode Recorded In A Single Sample Analysis. Necessary Condition 1.10.2. Minimum Sample Volume For Measurement: 1 Ml Or Less; Minimum Sample Concentration For Measurement: 0.1 Mg/Ml Or Lower Necessary Condition 1.10.3. Automatic Selection Of The Measuring Angle Note! Criterion For Evaluating Offers 1.11. Zeta Potential Measurement: Necessary Condition 1.11.1. Zeta Potential Measurement Based On Electrophoretic Light Scattering (Els) With Pals (Or With Modified Pals-Based Techniques) Necessary Condition 1.11.2. Zeta Potential Measurement Range From At Least -900Mv To +900Mv Necessary Condition 1.11.3. Possibility Of Measurement For Samples With Conductivity Up To At Least 200 Ms/Cm Necessary Condition 1.11.4. Minimum Sample Volume For Measurement: 1 Ml Or Less; Minimum Sample Concentration For Measurement: 1 Mg/Ml Or Lower Necessary Condition 1.12. Molecular Weight Measurement Based On Static Light Scattering (Sls) For A Range Of At Least 300 Da To 20 Mda At Minimum Sample Concentration

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