Dip-dry method

Ebadi reported that hydroxylamine is electrocatalytically oxidized to N2O via a two electron process by (RuPc)2 adsorbed onto a graphite electrode (by dip dry method) in the pH range 9 -13, Table 7.8. The catalytic process is mediated by the Ru /Ru° redox couple and the coordination of hydroxylamine as follows (Equations (7.17) and (7.18)) ... 

PPy-Pt electrode and the electrode was dried at room temperature. Then the enzyme was cross-linked with 2.5% glutaraldehyde by Dip dry method. Further, 10 pL of HRP (0.2 mg mL ) was coimmobilized on SOD-PPy-Pt electrode. And then the HRP-SOD-PPy-Pt electrode was immersed in 0.2 mM thionine for 24 h and allowed to dry at room temperature. 

We prepared ceria on Ni substrate by sol-gel coating method. Ceria sol solution was prepared with ceria sol solution (Alfa, 20% in H2O, colloidal dispersion) mixed with ethanol (99.9%, Hayman) with weight ratio (1 2) and stirred. Ceria was deposited on Ni substrate by dip coating method. The variation number of dipping was carried out to obtain different coating ratio. The anode was completely dipped into the ceria sol solution for several seconds and dried at a temperature of 50 C for 24 hours in air atmosphere followed by calcination at 700 C for 30 minutes in 5%H2-N2 atmosphere. 

WP/F is manufactured in the Pine Bluff Arsenal in Pine Bluff, Arkansas. Molten white phosphorus stored under water is loaded in munitions shells either by the dip-fill or dry-fill methods (Berkowitz et al. 1981). In the dip-fill method, the shell canisters containing the felt wedges are passed through tubs of molten phosphorus under water. In the dry fill method, molten phosphorus is added directly to the canister under an inert atmosphere. The latter method greatly reduces phosphorus waste (phossy water) and environmental contamination (Spanggord et al. 1983). 

A Pz immunosensor for the detection of Listeria monocytogenes was published by Jacobs et al. [87]. The bacteria could be measured to 10 cellsmL using dip and dry methods of detection. Analysis carried out directly in solution allowed detection to 5 x 10 cells mL. Antibody coated crystals were stored for 17 days without detectable loss in activity. Protein A was used as the immobilisation method but not compared to others. Later the group published details of a displacement assay for the detection of this species [88]. This assay could detect the antigen from 2.5 x 10 to 2.5 x 10 cells/crystal directly in solution monitoring the response in real time. The assay was also performed in milk. Assays in milk were also shown to be specific for... 

Hybrid nanostructured films on the surface of AA2024 (A1 alloy) plates were deposited from the prepared sols by the dip coating method described in details in [3]. After coating deposition, the samples were dried at room temperature for 1 h and then heated at 120 °C for 80 min in air. 

When a stable spinel LiNio sMno 5O4 is coated on Li2Mn03 by a simple dip-and-dry method, a spinel/layered heterostructured material is prepared. This heterostructured material can maximize the inherent advantages of the 3D Lh insertion/extraction framework of the spinel structure and provides a high Li+ storage capacity in the layered structure. As shown in Figure 6.3, the heterostructured material has excellent rate capability and high capacity [9]. 

Method 1 (with acetyl chloride). Equip a dry 500 ml. round-bottomed or bolt-head flask with a reflux condenser, and fit the top of the condenser with a two hole cork, one opening for a separatory funnel and the other for a delivery tube connected to an inverted funnel which dips just below the surface of about 200 ml. of water in a beaker (compare Fig. II, 13, 8). Place 40 g. of anhydrous, finely-powdered aluminium chloride (see Section IV,2) and 88 g. (100 ml.) of dry A.R. benzene in the flask and cool the latter in a bath of cold water (not ice water since benzene may crystallise). Through the separatory funnel at the top of the condenser add 29 g. (27 ml.) of redistilled acetyl chloride slowly during half an hour and shake the flask frequently to ensure thorough mixing of the... 

Meihylamine hydrochloride method. Place 100 g. of 24 per cent, methyl-amine solution (6) in a tared 500 ml. flask and add concentrated hydrochloric acid (about 78 ml.) until the solution is acid to methyl red. Add water to bring the total weight to 250 g., then introduce lSO g. of urea, and boil the solution gently under reflux for two and three-quarter hours, and then vigorously for 15 minutes. Cool the solution to room temperature, dissolve 55 g. of 95 per cent, sodium nitrite in it, and cool to 0°. Prepare a mixture of 300 g. of crushed ice and 50 g. of concentrated sulphuric acid in a 1500 ml. beaker surrounded by a bath of ice and salt, and add the cold methylurea - nitrite solution slowly and with mechanical stirring and at such a rate (about 1 hour) that the temperature does not rise above 0°. It is recommended that the stem of the funnel containii the methylurea - nitrite solution dip below the surface of the acid solution. The nitrosomethylurea rises to the surface as a crystalline foamy precipitate. Filter at once at the pump, and drain well. Stir the crystals into a paste with about 50 ml. of cold water, suck as dry as possible, and dry in a vacuum desiccator to constant weight. The yield is 55 g. (5). 

Dip Stick Indicators. Visual level indication can be obtained by dropping a weighted cable or rigid dip stick into the media until it reaches the bottom of the vessel. Graduations are marked on the cable or stick. Upon retrieval the operator looks for the point of dry vs wet indicating the depth of the media. This method of level indication is useful in ambient/atmospheric appHcations in nonha2ardous environments. It is not recommended for other appHcations. Measurements are accurate only to the extent of the skill of the operator. 

---