Warm spraying

Leaves with purplish patches. Cause Phosphorus deficiency. This is common in cool spring soils. Plants usually outgrow problem when soils warm. Spray leaves with seaweed extract to speed up recovery. 

Leaves of young plant purple. Causes Phosphorus deficiency lack of dark period. Phosphorus is unavailable in cool soil symptoms usually fade as soil warms. Spray plants with seaweed extract to alleviate symptoms. 

The CASS Test. In the copper-accelerated acetic acid salt spray (CASS) test (42), the positioning of the test surface is restricted to 15 2°, and the salt fog corrosivity is increased by increasing temperature and acidity, pH about 3.2, along with the addition of cupric chloride dihydrate. The CASS test is used extensively by the U.S. automobile industry for decorative nickel—chromium deposits, but is not common for other deposits or industries. Exposure cycle requirements are usually 22 hours, rarely more than 44 hours. Another corrosion test, now decreasing in use, for decorative nickel—chromium finishes is the Corrodkote test (43). This test utilizes a specific corrosive paste combined with a warm humidity cabinet test. Test cycles are usually 20 hours. 

Humidification of the gas stream is the preferred method of keeping the filter bed moist. Gas moisture is usually added to the incoming gas stream downstream of the particulate removal APC equipment by either water sprays or steam. Adding moisture directly to the top of the bed in order to maintain filter media moisture is not recommended since this can result in (I) locahzed drying of the substrate, and (2) cold water addition will reduce the ac tivity of the microorganisms until the water becomes warmed to the steady-state filter ed temperature. 

Spray-dried extract The solutions containing the drug extracts, which are sprayed through a nozzle, sink in the form of fine droplets in the current of warm air, losing their moisture and reaching the separator as dry and hollow pellets of extract which can be recognized with a hand lens. The spray-... 

The warming up of the mat is performed by the so-called steam shock effect [173,219]. A prerequisite for this is the high permeability of the particle or fiber mat. Higher moisture contents of the face layers and spraying of water sustain this effect. 

Such care includes washing of the filter material with the spray jets after every period of use, removal of grease and fats with warm soap solution if clogged, treatment with diluted hydrochloric acid for removal of lime encrustations, maintenance of scraper bade in careful adjustment to filter drum to prevent tearing of the filter material. 

The chromatogram is freed from mobile phase in the drying cupboard (10 min, 120°C) and immersed for 1 s in the reagent solution or sprayed homogeneously with it until the plate starts to appear transparent it is then dried briefly in a stream of warm air and heated to 125 —130 °C for 45 min. 

Spray solution For glycolipids Carefully add 72 ml cone, sulfuric acid to 28 ml water with cooling. Dissolve 50 mg anthrone in the mixture with gentle warming [5]. 

The chromatogram is freed from mobile phase in a stream of warm air and immersed for 4 s in the dipping solution or evenly sprayed with it until the layer begins to be transparent (the spray solution is employed for glycosides) and then heated to 105 —120 °C for 5 — 15 min. 

Spray solution Ilb Dissolve 1 g 7V-(l-naphthyl)ethylenediamine dihydrochloride in 50 ml dimethylformamide and 50 ml hydrochloric acid (< Hci = 4 mol/1) with warming. If the cooled solution is not clear it should be filtered. A pale violet coloration does not interfere with the reaction [4]. 

The chromatograms are freed from mobile phase and then sprayed with spray solution I until the layer begins to be transparent, then dried in a stream of cold air for 10 min and finally sprayed again to the start of transparency this time with spray solution Ila or lib and dried in a stream of warm air. 

The dried chromatograms are immersed in dipping solution I for 1 s, dried in a stream of warm air, dipped immediately after cooling in dipping solution II (1 s) and then heated to 100 °C for 2—3 min. Alternatively the chromatogram can be sprayed with the appropriate spray solutions. 

The chromatogram is freed from the mobile phase in a current of warm air (2 to 10 min), immersed in the dipping solution for 2 s or sprayed evenly with the spray solution and then dried in a stream of warm air (or 10 — 20 min at 110°C). 

Detection and result The developed chromatogram was heated to 80°C for 15 min the warm plate was sprayed first with Flavone Reagent (3% in methanol)... 

The chromatograms are dried in a stream of warm air or at 105 °C for 10 min, cooled to room temperature and sprayed homogeneously with the spray reagent until they start to become transparent. 

Variant II The chromatogram is dried in a stream of warm air or in the drying cupboard (10 min, 120 °C), cooled to room temperature and then sprayed twice with spray solution II a until the layer is transparent (dry in a stream of warm air after each spray step ). It is then sprayed with a small amount of spray solution Ilb [6],... 

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