DEK-1550 Lab equipment for biological sample preparation

Purchase of laboratory equipment suitable for the preparation of biological samples Quantity: 7 units 1. Compact benchtop centrifuge with autoclavable rotor Quantity: 1 unit - Rotor suitable for centrifuging min. 12 x 1.5 ml standard size Eppendorf tubes - Set of reduction inserts for centrifuging min. 12 x 0.2 ml standard size PCR tubes, as accessories Area of use: - Production of virus concentrate on a laboratory scale from supernatants - Biological sample preparation for metabolomic, proteomic, genomic, or transcriptomic work - Implementation of protein isolation procedures' precipitation steps for SDS-PAGE analysis, proteomic digestion, or other analytical procedures 2. Dry block heater with blocks Quantity: 1 unit - Device capable of simultaneously holding min. 36 x 1.5 ml standard size Eppendorf tubes Area of use: - Reproducible implementation of enzyme inactivation steps by incubation at high temperatures on a laboratory scale - Reproducible implementation of heat-requiring protein denaturation procedures on a laboratory scale - Solvent extractions for fractionation, degreasing steps 3. Digital multimeter with pH electrode Quantity: 1 unit - pH measurement range: max. 0 - min. 14 pH Area of use: - Reproducible preparation of nutrient solutions, stock solutions (with pH electrode) - Preparation of reagents required for proteomic and other sample preparation procedures (with pH electrode) - Water quality control (with conductivity meter electrode) 4. Semi-micro balance with anti-static function Quantity: 1 unit - min. 0.01 mg accuracy at a load capacity of min. 50 g Area of use: - Weighing solid components of reagents - Weighing solid components of nutrient solutions - Determination of the dry mass (water content) of biological suspensions after lyophilization - Gravimetric determination of products from semi-preparative processes in the mg range - Weighing biological samples for extraction, digestion, or other sample preparation procedures 5. Ultrasonic water bath Quantity: 1 unit - Bath with an internal width and length of min. 15 cm Area of use: - Degassing of liquids, e.g., for HPLC or other chromatographic applications - Reduction of O2 content in liquids before sensitive extraction procedures (e.g., metabolomic sample preparation) - Increasing the efficiency of solvent, aqueous, or buffer extraction procedures - Effective cleaning of rarely reused containers (e.g., borosilicate glass bottles) 6. Water purification system suitable for producing Type III, Type II, and Type I water Quantity: 1 unit - Real-time display of water purity - Type III water: min. 20 l/hour Type III water production capacity - Type II water: min. 400 l/hour Type II water production capacity - Type I water: resistance min. 18.3 MΩ, total organic carbon (TOC) max. 10 ppb, endotoxin max. 0.125 EU/ml, bacteria max. 1 CFU / ml Area of use: - Type I water: applications requiring analytical water purity, e.g., extraction, (semi)preparative HPLC mobile phase base material, LC-MS mobile phase base material - Type II water: applications requiring distilled water-like purity, e.g., water supply for autoclave steam generators, water supply for ultrasonic humidity regulators in climate chambers, preparation of nutrient solutions - Type III water: rinsing, washing, wiping surfaces clean 7. Freezer cabinet Quantity: 1 unit - min. 400 liters usable volume - Freezer cabinet stably maintaining a temperature of -18 °C or lower (EN 60068-3) with a shelf design Area of use: - Organized storage of dry/lyophilized samples at max. -18 °C - Storage of partially opened or partially pre-prepared wet biological samples at max. -18 °C - Conditioning of ice packs for sample transport The technical requirements for the products to be procured are detailed in the technical description document. The tenderer must offer factory new, unused products; the winner will be...