CN102495036A

CN102495036A - On-site detector for fluorescent bleaching agent in living paper products

Info

Publication number: CN102495036A
Application number: CN2011104022203A
Authority: CN
Inventors: 刘宏权
Original assignee: CHANGCHUN MEITAI TECHNOLOGY Co Ltd
Current assignee: CHANGCHUN MEITAI TECHNOLOGY Co Ltd
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-06-13

Abstract

The invention provides an on-site detector for a fluorescent bleaching agent in living paper products, belonging to the field of detection instruments. The invention aims to provide the on-site detector for the fluorescent bleaching agent in the living paper products, which can be used for conveniently carrying out detection and analysis on paper in real time at any where. According to the invention, a machine body is provided with a module interface, a display screen and a press key panel, wherein the press key panel is provided with a backspace key, an enter key, a page-up key and a page-down key, wherein the module interface is covered by a protection cover; a fluorescent stimulation module is arranged on the corresponding module interface in the machine body and the fluorescent stimulation module is provided with a stimulated carrier module socket, a left emission light source channel, a right emission light source channel and a detection channel; an optical filter and a photoelectric detector are installed at the outlet part of the detection channel; a stimulated carrier module is provided with a slide groove, a carrier pressing plate is inserted into the slide groove, and a circular hole is arranged on the carrier pressing plate. The invention provides a simple, flexible and rapid analysis instrument and particularly relates to an analysis instrument for rapidly and quantitatively detecting the content of the fluorescent bleaching agent in paper, facial tissues, napkins and other living paper products on site.

Description

Paper for daily use goods fluorescer in-situs tester

Technical field

The invention belongs to the detecting instrument field.

Background technology

Fluorescer is a kind of fluorescent dye, belongs to organic compound.Its characteristic is can excite to absorb incident ray generation fluorescence; Be to excite after the absorbing ultraviolet light (wavelength coverage is about 360-380 nm) to produce the visible light of wavelength in 400-600 nm scopes; Thereby can compensate undesired little yellow in the matrix, thereby the goods that naked eyes are seen seem more in vain, brighter, more bright-coloured.Because fluorescer can significantly improve paper of whiteness, so it is widely used in papermaking and paper product industries.The goods that contain fluorescer are when contacting with human body, and fluorescer can be moved on the human body under the soaking into of water or sweat.Fluorescer belongs to organic compound, and there is potential prestige evil in excess use meeting to human body and environment.For various reasons, China is imperfect to the use and the in situ quantitation detection of fluorescer, and many in the world countries are to the requirement of using and detect strictness of fluorescer.

Summary of the invention

The purpose of this invention is to provide a kind of convenient lightly, can be in real time carry out the paper for daily use goods fluorescer in-situs tester that detection at any time is analyzed paper.

The present invention has module mouth, display screen and key panel on body, return key, acknowledgement key, upturning key, downturning key are wherein arranged on the key panel, is stamped over cap on the module mouth; There is the fluorescence excitation module at the place at internal body respective modules mouth, and the carrier module of being excited socket, left transmitting illuminant passage, right transmitting illuminant passage and sense channel are arranged on the fluorescence excitation module, in the exit of sense channel optical filter and photoelectric detector is installed; Being excited has chute on the carrier module, and the carrier compressing tablet inserts in the chute, on the carrier compressing tablet, circular hole is arranged.

The present invention is a kind of easy, sensitive, express-analysis instrument, is specifically related to a kind of analysis on Content instrument that on-the-spot fast quantification detects paper, tissue, napkin paper and other paper for daily use goods fluorescer that is used for.Its distinguishing feature is:

1, adopts 365nmLED ultraviolet excitation light source, modern design;

2, adopt modular construction, on-the-spot easy to use;

3, adopt microprocessor control, have the detection system database function.

Description of drawings

Fig. 1 is an integral outer structural representation of the present invention;

Fig. 2 is a fluorescence excitation module perspective view of the present invention;

Fig. 3 is a fluorescence excitation module cut-open view of the present invention;

Fig. 4 is that the present invention is excited carrier module agent structure synoptic diagram;

Fig. 5 is that the present invention is excited carrier module compressing tablet structural representation;

Fig. 6 is that the present invention is excited the carrier module compressing tablet and is plugged on the one-piece construction synoptic diagram in the agent structure slot.

Embodiment

The present invention has module mouth, display screen 3 and key panel 2 on body 1, return key 21, acknowledgement key 22, upturning key 23, downturning key 24 are wherein arranged on the key panel 2, is stamped over cap 4 on the module mouth; There is fluorescence excitation module 5 at 1 inner respective modules mouth place at body; The carrier module of being excited socket 51, left transmitting illuminant passage 52, right transmitting illuminant passage 54 and sense channel 53 are arranged on the fluorescence excitation module 5, optical filter 531 and photoelectric detector 532 are installed in the exit of sense channel 53; Being excited has chute 7 on the carrier module 6, and carrier compressing tablet 8 inserts in the chute 7, and circular hole 9 is arranged on carrier compressing tablet 8.

Paper for daily use goods fluorescer in-situs tester provided by the invention comprises: casing, fluorescence excitation module, be excited carrier module, LCD MODULE, a plurality of button and solidify the database in microprocessor.Wherein, said fluorescence excitation module is that plastic material is cube structure, and the fluorescence excitation module centers is a square groove, is excited carrier module to lay wherein.Square groove be excited the carrier module clearance fit.Being excited carrier module can freely pick and place in square groove.The fluorescence excitation sidewalls is arranged with transmitting illuminant passage and sense channel by certain angle on same straight line, the transmitting illuminant passage is positioned at the sense channel both sides.The 365nmLED light source is laid wherein.The extended line of both sides transmitting illuminant passage and sense channel intersects at a point, and focus converges in being excited on the carrier module in the fluorescence excitation module.Be equipped with optical filter and photoelectric detector in the sense channel, emitting fluorescence is received by photoelectric detector through sense channel.Said be excited carrier module by be excited the carrier module main body be excited the carrier compressing tablet and form.Being excited carrier module is that plastic material is cube structure, constitutes to be excited the carrier module main body.Being excited the carrier module sidewall contains one and connects square groove, and the scraps of paper to be detected are put into wherein, scraps of paper size to be detected and square groove clearance fit.Being excited the carrier compressing tablet is pressed in the scraps of paper to be detected in the square groove.Being excited carrier compressing tablet center has a circular hole, and the scraps of paper to be detected are come out.Exciting light converges on the scraps of paper face to be detected in the circular hole.Emitting fluorescence comes out from the circular hole surface launching.Circular hole area and emitting fluorescence intensity have correlativity.Promptly converse the content of the fluorescer in every square metre on the scraps of paper to be detected or the gram (mg/m2, mg/g) according to scraps of paper area to be detected in the circular hole or weight institute emitted fluorescence content.

When doing sample detection; To be examined paper and be installed in and be excited in the carrier module, will be excited carrier module again to be positioned in the square groove of fluorescence excitation module, like this by the direction of corresponding transmitting illuminant passage of circular hole and sense channel; Examined spilling at the circular hole position and corresponding transmitting illuminant passage and sense channel of paper; Directive sense channel behind the 365nmLED ultraviolet excitation fluorescent material generation 430nm emission light is radiated at and is examined on the paper, gets into the transmitting illuminant passage in reflection; Optical filter in the transmitting illuminant passage with other wavelength parasitic light filtering after, photoelectric detector receives.Testing result sends microprocessor processes to, detects through a large amount of actual paper goods, gathers into the database of detection system.Can obtain the content of scraps of paper fluorescer to be detected during on-the-spot the detection.

1, the making of detection system database

Accurately take by weighing fluorescent brightener CBS-X0.01 gram and put into small beaker, added deionized water 20ml then ultrasonic 5 minutes, the dissolving back moves in the brown volumetric flask of 1000ml and is settled to groove, and this moment, solution was the 10ug/ml standard solution.In 7 10ml color-comparison tubes, add standard solution 0ml successively, 0.05ml, 0.1ml, 0.25ml, 0.5ml, 0.75ml, 1.0ml.Be settled to groove with deionized water, this moment, the concentration of solution was respectively 0ug/ml, 0.05ug/ml, 0.1ug/ml, 0.25ug/ml, 0.5ug/ml, 0.75ug/ml, 1.0ug/ml.

Be cut into scraps of paper size to be detected with acetate fiber filter paper, get and prepare that one of standard solution dissolves in its center and to be excited carrier compressing tablet circular hole position corresponding.Put into then and be excited the carrier module square groove, compress and be excited to insert in the fluorescence excitation module behind the carrier compressing tablet, start detects.Make typical curve with algorithm after sending detection information to microprocessor; Standard solution by multiple variety classes fluorescer is mixed with variable concentrations is made multiple different typical curve; The typical curve correction coefficient is for to draw through a large amount of actual sample control experiments with the standard method fluorophotometer; Make actual sample detected value of the present invention consistent, assemble the detection system database then with the standard method fluorophotometer.Therefore, when doing actual sample and detect, through with the comparison of detection system database, can in situ quantitation detect the content of paper products fluorescer.The fluorescence content that promptly produces according to fluorescer in paper products area or the weight in the circular hole converses the fluorescent brightener levels of every square metre on the scraps of paper to be detected or gram (mg/m2, mg/g).Practical implementation is following: the area of circular hole is a certain value, can converse the fluorescence content of every square metre on the scraps of paper to be detected (mg/m2) thus; The area weighing of cutting circular hole can converse the fluorescence content of the every gram of the scraps of paper to be detected (mg/g) thus.

2, method of application

The scraps of paper to be detected are cut into being excited to put into behind the carrier module square groove fit dimension are excited the carrier module square groove, compress and be excited to insert in the fluorescence excitation module behind the carrier compressing tablet, start detects.Can detect to contain how many (mg/m2, mg/g) fluorescers in the scraps of paper by in situ quantitation.

Below produce Cary Eclipse fluorophotometer control experiment result with Australia for paper for daily use goods fluorescer in-situs tester of the present invention.

Sample is selected Zijin flower brand napkin paper for use

Claims

1. paper for daily use goods fluorescer in-situs tester; It is characterized in that: module mouth, display screen (3) and key panel (2) are arranged on body (1); Return key (21), acknowledgement key (22), upturning key (23), downturning key (24) are wherein arranged on the key panel (2), be stamped over cap (4) on the module mouth; There is fluorescence excitation module (5) at the place at the inner respective modules mouth of body (1); The carrier module of being excited socket (51), left transmitting illuminant passage (52), right transmitting illuminant passage (54) and sense channel (53) are arranged on the fluorescence excitation module (5), optical filter (531) and photoelectric detector (532) are installed in the exit of sense channel (53); Being excited has chute (7) on the carrier module (6), and carrier compressing tablet (8) inserts in the chute (7), and circular hole (9) is arranged on carrier compressing tablet (8).