34results about How to "Easy to use and store" patented technology

The invention discloses a fluorescence molecule probe which belongs to the technical field of chemical analysis and detection, and particularly relates to a zinc and copper molecule probe, a method for preparing the probe and the application of the probe in heavy metal ion identification and detection. As a 1-(7-acetamide-1, 8-naphthyridine)-2-(6-acetamide-pyridine)-vinyl compound, the zinc and copper ion fluorescence probe can be applied in ion detection and heavy metal ion detection for biological tissues, and has the advantages of rapidity, accuracy, convenience, good specificity and better prospect of application.

The invention relates to a functional reactive dye for a zinc ion probe, and a preparation method and application thereof. The dye has a structural formula as described in the specification. The preparation method comprises the following steps: subjecting rhodamine B and hydrazine hydrate to a heating reflux reaction so as to obtain rhodamine B hydrazide; subjecting methyl p-aminobenzoate and hydrazine hydrate to a heating reflux reaction, dissolving a product in a solvent, adding salicylaldehyde drop by drop and then carrying out a heating reflux reaction so as to obtain salicylaldehyde-4-aminobenzoyl hydrazone; and dissolving cyanuric chloride in a solvent, adding an acid binding agent, adding rhodamine B hydrazide drop by drop at a temperature in a range of -5 to 5 DEG C, carrying out a reaction under stirring so as to obtain a concentration product, dissolving the concentration product in a solvent, adding the acid binding agent, adding salicylaldehyde-4-aminobenzoyl hydrazone drop by drop and carrying out a reflux reaction with temperature controlled so as to obtain the functional reactive dye. The functional reactive dye has good selectivity on zinc ions, is convenient to use in sewage treatment and exerts good usage effect.

The invention relates to a composite phosphorous removal agent for the sewage treatment and a preparation method thereof. The existing chemical phosphorous removal agent mainly includes products such as polymer aluminium chloride, polymer ferric sulfate, ferric chloride and aluminum sulfate, the dosage is large, the phosphorous removal effect is poor, the phosphorous removal cost is high, and the popularization of the chemical phosphorous removal technology is severely restricted. The aluminum processing waste is placed into acid liquid to be stirred and reacted under the normal pressure, and the control temperature is 90 to 100 DEG C; ferric trichloride is added after the reaction of 2 hours, and the mixture stands to be polymerized after being stirred; the supernatant liquid is pumped into a compounding pool to prepare the ferric alumina sol solution, and the degree of alkalization is controlled at 30 to 60 percent; and when the temperature of the ferric alumina sol solution is reduced to 40 DEG C or below, quaternary ammonium salt organic polymer compound is added according to the ratio of 0.2 to 5 percent, the density is adjusted by adding water to obtain the product. The obtained special chemical phosphorous removal agent is effective after being stored for three months and has the characteristics of simple production process, convenience in use and storage, high phosphorous removal effect and low processing cost.

The invention provides a method for detecting bismuth ions by utilizing a rhodamine-type fluorescent probe. The method for detecting the bismuth ions by utilizing the rhodamine-type fluorescent probe is characterized by comprising the following steps of preparing a probe solution by utilizing the rhodamine-type fluorescent probe, adding the probe solution into to-be-detected bismuth-ion liquid, fixing a volume by utilizing a solvent, enabling an obtained mixture to stand for a period of time, detecting fluorescence intensity, and determining the content of the bismuth ions in the to-be-detected bismuth-ion liquid according to a relation between the fluorescence intensity and the concentration of the bismuth ions. A functional active dye in the method for detecting the bismuth ions by utilizing the rhodamine-type fluorescent probe has quite good selectivity for the bismuth ions, and is not only convenient but also has a better usage effect in sewage treatment application.

The invention relates to a thioureas ultraviolet probe and preparation and application thereof. A structural formula of the probe is as follows. The probe is obtained by reaction between phenyl isothiocyanate and hydrazine hydrate. The thioureas ultraviolet probe is used for detecting lead ions: preparing a probe solution, adding the probe solution into a lead ion solution to be detected, making the volume constant by utilizing a solvent, standing, detecting absorbance under the wavelength of 382nm by means of an ultraviolet-visible spectrometry, and determining the content of the lead ions in the lead ion solution to be detected according to a relationship between relative ultraviolet strength and lead ion concentration. The thioureas ultraviolet probe in the invention is solid powder which is convenient to use and store, and is obtained by direct reaction between the phenyl isothiocyanate and the hydrazine hydrate. A synthesis method is simple, the yield is high, the cost is low, and the application prospect is good.

The invention provides a method for detecting aluminum ions by using a reactive dye fluorescence probe. The method comprises the following steps: 1, dissolving the reactive dye fluorescence probe in a solvent, adding the solvent to a constant volume in order to obtain a probe stock solution, transferring the probe stock solution to a volumetric flask, and adding the solvent to a constant volume in order to obtain a probe solution; 2, dissolving an aluminum salt in the solvent, and adding the solvent to a constant volume in order to obtain an aluminum ion stock solution; 3, determining a relation between the fluorescence intensity and the aluminum ion concentration; and 4, taking an aluminum ion solution to be detected, adding the probe solution obtained in step 1 to the aluminum ion solution to be detected, adding the solvent to a constant volume, standing the obtained solution for a period of time, detecting the fluorescence intensity, and determining the content of aluminum ions in the aluminum ion solution to be detected.