respected user:
Hello! When you sign a contract with us, you become our users. Please prepare the company before the arrival of the technical staff to do the following preparatory work, ready to "on the preparation of the receipt" back to my company, our company will be based on "receipt" content, as soon as possible arrangements for technical staff debugging.
1. Proficiency in computer basic knowledge, chemical analysis of professional staff 2.
2. Should be equipped with smooth and smooth workstations, laboratory temperature control between 10-30 ℃, with a reliable power supply and a good grounding line.
3. Deionized water should be used for distillation, and then by the exchange of resin bed exchange, the conductivity control in the 0.05μs / cm below, can also be used to produce water purifier 18.2 megohm of ultra-pure water.
4.1000ml filter bottle 1, G4 250ml sand core funnel 1, rubber plug 1 (the three should be able to be assembled together). Vacuum degassing pump one (my company has been allocated).
5. One electronic balance (accurate to 0.001).
6. Need to prepare the following reagents (analysis of pure above, the type of drug can be adjusted according to the different ions measured)
Anionic preparation reagents: sodium carbonate, sodium bicarbonate, sodium fluoride, potassium chloride, sodium nitrite, potassium dihydrogen phosphate, potassium bromide, sodium nitrate, sodium sulfate, anhydrous ethanol,
Voltammetry Preparation reagents: sodium carbonate, boric acid, ethylenediamine to be analyzed standard solution of voltammetry, sodium sulfide (including nine water), potassium cyanide (highly toxic)
8. Utensils
(1) 500 ml plastic bottles, glass reagent b
Capacity bottle specificatio |
50ml |
100ml |
250ml |
500ml |
1000ml |
Quantity |
5-10 |
10 |
2 |
2 |
2 |
(3) pipette and scale straw
specification |
0.5 ml |
1 ml |
2 ml |
5 ml |
10 ml |
15 ml |
20 ml |
50ml |
Quantity |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
(4) suck the ear ball, wash the bottle each one
9. Prepare the computer (xp system), the printer
If you have any questions, please call the technical service telephone 15726206261. Qingdao Pu Ren Instrument Co., Ltd.