WO2016098986A1 - Method for estimating production year of solar salt by k-40 concentration measurement - Google Patents

Method for estimating production year of solar salt by k-40 concentration measurement Download PDF

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WO2016098986A1
WO2016098986A1 PCT/KR2015/008152 KR2015008152W WO2016098986A1 WO 2016098986 A1 WO2016098986 A1 WO 2016098986A1 KR 2015008152 W KR2015008152 W KR 2015008152W WO 2016098986 A1 WO2016098986 A1 WO 2016098986A1
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salt
concentration
year
production
potassium
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PCT/KR2015/008152
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French (fr)
Korean (ko)
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최훈
김희선
양광희
주현진
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한국수력원자력 주식회사
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Priority to JP2017531690A priority Critical patent/JP6371479B2/en
Priority to CN201580066657.0A priority patent/CN107003416B/en
Publication of WO2016098986A1 publication Critical patent/WO2016098986A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/167—Measuring radioactive content of objects, e.g. contamination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S345/00—Computer graphics processing and selective visual display systems
    • Y10S345/904—Display with fail/safe testing feature

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  • the present invention relates to a method for estimating the year of production of sun salt, and more particularly, to measure the concentration of potassium-40 (K-40) using a high-purity gamma nuclide analyzer in order to solve the opacity of the distribution process due to the year of manufacture and the forgery of the place of manufacture.
  • K-40 potassium-40
  • the government stipulates the standards for designating banned edible sea salt production areas, the application criteria for sun salt certification, and designation of the ban, natural salt certification authority, and corrective power for sun salt certified products.
  • the seawater regulations for sea salt production according to safety management standards include living environment standards including hydrogen ion (pH 6.5-8.5) concentrations and total coliform counts (below 1,000 / 100/100 ml), eco-based seawater quality standards, arsenic, It includes human health protection standards, including cadmium, lead and mercury zones and reservoir settings.
  • Salt facilities also include criteria such as crystallized flooring, dyeing tools, transfer tools, machinery, and coverings for temporary storage during the production of edible salt.
  • new safety management standards (2013-216) have been added to the production of salt salts, burned-molten salts, refined salts, and processed salts.
  • the quality standards include sodium chloride (more than 70%) and total chlorine ( 40% or more), water (15% or less), and sulfate ions (5% or less). Insoluble content (0.15%), sand and soil (0.2% or less), and ferrocyanide ions (non-detection, antistatic agent) concentrations were presented as cleanliness criteria.
  • Arsenic (50 ⁇ g / L), lead (50 ⁇ g / L), cadmium (10 ⁇ g / L), and mercury (0.5 ⁇ g / L) concentrations were presented for fever and reservoir.
  • the present invention has been devised to solve all the problems of the prior art, the amount of remaining potassium-40 (K-40) through the gamma nuclide detector using the property that constituent insoluble elements exit at a certain rate when the natural salt is left for a long time
  • the purpose of the present invention is to provide a method for estimating the year of production of natural salts by measuring the concentration of K-40 which makes it easier to estimate the year of production of natural salts by detecting.
  • Another object of the technique according to the present invention is to detect the amount of residual potassium -40 (K-40) through a gamma nuclide detector using a property that constituent insoluble elements exit at a certain rate when the natural salt is left for a long time. Its purpose is to enable the quality control through the history management of sun salt by estimating the production year.
  • Another object of the technology according to the present invention is to detect the amount of remaining K-40 through the gamma nuclide detector by estimating the production year of the sun salt by using the property that constituent insoluble elements escape at a certain rate when the sun salt is left for a long time
  • the purpose is to ensure transparency in the distribution process.
  • the present invention configured to achieve the above object is as follows.
  • the method for estimating the year of production of natural salts by measuring the concentration of K-40 measures the concentration of potassium-40, a radionuclide element, in the liver salt dissolved in the natural salts or the natural salts using a radionuclide analyzer. It is composed so that the production year of the natural salt can be estimated through the concentration of -40.
  • the potassium-40 (K-40) concentration measured by the radionuclide analyzer in the configuration according to the present invention as described above falls within the range of 130 ⁇ 220 Bq / kg, the production year of the natural salt is 1 ⁇ If the estimated potassium-40 concentration is 130 Bq / kg or less, it is better to estimate the year of production of the natural salt at 3 years or more.
  • the time for measuring the concentration of potassium-40 through the radionuclide is better measured for 5,000 to 30,000 seconds.
  • the production year of the natural salt is more easily detected by detecting the amount of remaining potassium-40 (K-40) through a gamma nucleus detector. Can be estimated.
  • the technique according to the present invention detects the amount of remaining potassium-40 (K-40) through the gamma nucleus detector by using a property that constituent insoluble elements are released at a certain rate when the natural salt is left for a long time, the production year of the natural salt It is estimated that quality can be managed through the history management of sun salt.
  • the technique according to the present invention detects the amount of remaining K-40 through the gamma nuclide detector by using the property that constituent insoluble elements are released at a constant ratio when the natural salt is left for a long time to estimate the production time of the natural salt. Transparency can be secured.
  • Figure 1 according to the present invention method for estimating the production of natural salts by measuring the concentration of K-40 according to the present invention 1 Kg into a new mariner beaker and equipped with a high-purity gamma nuclide analyzer, 1,460 while analyzing from 5000 seconds to 30,000 seconds
  • a graph showing that the K-40 peak at the KeV energy band selected a time point with an appropriate peak shape (10,000 seconds) and derived radioactivity values.
  • Figure 1 according to the present invention method for estimating the production of natural salts by measuring the concentration of K-40 according to the present invention 1 Kg into a new mariner beaker and equipped with a high-purity gamma nuclide analyzer, 1,460 while analyzing from 5000 seconds to 30,000 seconds
  • the graph shows that the K-40 peak at the KeV energy band selects the time point (10,000 seconds) with the appropriate peak shape and derives the radiation value.
  • the natural salt production step can be summarized as the step of completing the salt crystal by evaporating the sea water in the sun.
  • Seawater quality safety regulations provide hydrogen ion concentrations, water quality standards such as total E. coli counts, insolubles and cleanliness such as sand, soil and ferrocyanide ions, and heavy metal contamination standards such as arsenic, lead, cadmium and mercury.
  • the present invention focuses on the fact that there is no method for checking the sun salt production year in the distribution step as described above, and produces using the characteristic that the ingredients constituting the salt are constantly drawn out through the water in the step of producing and storing salt. It was planned to identify the year.
  • the natural radionuclide potassium-40 (K-40), which is necessarily included in the natural salt, is measured using a high purity radionuclide (High Purity Germanium Spectrometer), and the concentration of the corresponding K-40 is measured. Consists of the estimation of the year of production of sun salt.
  • the method of estimating the production year of sun salt by K-40 concentration measurement is a radionuclide K- which is a radionuclide element for sea salts or salt water from the sun salt distributed in the salt field or market through a radionuclide analyzer. After measuring the concentration of 40, the configuration is made so that the estimated year of production of the natural salt can be estimated through the measured K-40 concentration.
  • the estimation of the year of production of natural salts according to the history management criteria as described above, if the potassium-40 (K-40) concentration measured by the radionuclide analyzer falls within the range of 130 ⁇ 220 Bq / kg When the production year was estimated to be 1 to 2 years, and the measured potassium-40 concentration was 130 Bq / kg or less, the production year of the natural salt could be estimated to be 3 years or more.
  • the radionuclide is a radionuclide analyzer for measuring the concentration of potassium-40 (K-40), which is a natural radionuclide, which is necessarily included in the natural salt. Fabrication, relative efficiency: 30%, corresponding energy band: 1,460 KeV) was measured.
  • K-40 potassium-40
  • the salt concentration of seawater is 35%, sodium chloride (27 g / kg), magnesium chloride (3.8 g / kg), magnesium sulfate (1.7 g / kg), calcium sulfate (1.3 g / kg), potassium sulfate (0.9 g / kg), calcium carbonate (0.1 g / kg) and magnesium bromide (0.1 g / kg), and the relative proportions between salts are constant in any sea in the world, regardless of salinity.
  • alkali water hydrogen, lithium, sodium, potassium, rubidium, cesium, framium
  • the salt field after the moisture evaporated by sunlight, the remaining natural salt crystals are composed of these elements in a constant ratio, and after standing for a long time, the elements are released at a constant ratio.
  • the K-40 concentration which is a natural radionuclide remaining in the natural salt, is measured by radionuclide analysis, and the measured K-40 concentration is estimated based on the history management standard.
  • the radionuclide analyzer is a device for measuring the intensity of the radionuclide by detecting the radionuclide through the analysis of the detected gamma ray energy waveform by detecting the gamma ray energy of the radioactivity.
  • the concentrated seawater for salt production in the salt field of Jeungdo-myeon, Sinan-gun, Korea's representative sea salt production area, and salt produced between May and August of each year were purchased for each production year.
  • HPGe Gamma Spectroscopy manufactured by Kenbera, USA, relative efficiency: 30%, applicable energy band: 1,460 KeV
  • the concentration of K-40, a radionuclide element in sun salt was measured by comparing the function by selecting the salt and salt produced in May ⁇ August in a salt field in Jeungdo-myeon, Sinan-gun, Korea. By deriving the table, a new standard for managing the history can be distinguished.
  • the technique according to the present invention can more easily estimate the production year of sun salt by detecting the amount of remaining K-40 through a gamma nuclide detector, and of course, the history management of sun salt by estimating the production year of sun salt. Quality can be managed through In addition, it is possible to secure the transparency of the distribution process by estimating the production time of the sun salt.

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Abstract

The purpose of the present invention, which relates to a method for estimating the production year of solar salt by K-40 concentration measurement, is to allow the production year of solar salt to be more easily estimated by detecting the amount of remaining potassium-40 (K-40) by means of a gamma nuclide detector by using the property in which when solar salt is left as is for a long time, constituent useless elements escape therefrom at a particular rate. To this end, the present invention is configured to measure the concentration of potassium-40, which is a radionuclide element, of solar salt or bittern melting out thereof by means of a radionuclide analyzer and thereby estimate the production year of the solar salt from the measured potassium-40 concentration, wherein the production year of the solar salt may be estimated to be one to two years if the potassium-40 (K-40) concentration measured by the radionuclide analyzer is within the range of 130-220 Bq/kg, and the production year of the solar salt may be estimated to be at least three years if the measured potassium-40 concentration is at most 130 Bq/kg.

Description

Ｋ-40 농도 계측에 의한 천일염 생산년도 추정방법Ｋ-40 Estimation method of sun salt production year by concentration measurement
본 발명은 천일염 생산년도 추정방법에 관한 것으로, 더욱 상세하게는 천일염의 제조년도와 제조지의 위변조 등으로 인한 유통과정의 불투명성을 해소하고자 고순도 감마핵종 분석기를 이용한 칼륨-40(K-40)의 농도 측정을 통해 천일염의 생산년도를 추정함으로써 천일염 유통구조의 투명성을 확보하고자 하는 K-40 농도 계측에 의한 천일염의 생산년도 추정방법에 관한 것이다.The present invention relates to a method for estimating the year of production of sun salt, and more particularly, to measure the concentration of potassium-40 (K-40) using a high-purity gamma nuclide analyzer in order to solve the opacity of the distribution process due to the year of manufacture and the forgery of the place of manufacture. By estimating the year of production of natural salts through the method of estimating the year of production of natural salts by K-40 concentration measurement to ensure the transparency of the natural salt distribution structure.
일반적으로, 국내 소금산업이 본격적으로 발달하기 시작한 것은 2008년 3월 천일염이 광물에서 식품으로 전환되면서 관련 업무가 지식경제부에서 농림수산식품부로 이관된 이후부터 소금산업이 발달하기 시작하였다. 그 동안 소금이 광물로 구분되어 관리되어오다 최근에 식용 천일염 생산에 사용되는 바닷물, 해역, 갯벌, 염전 및 기구, 자재 등에 대한 안전관리 기준이 규정되었다(해양수산부 소금산업자흥법, 법률 제11700호, 2013.03.23.자 개정).In general, the domestic salt industry began to develop in earnest. The salt industry began to develop in March 2008, when natural salt was converted from minerals to food, and the related work was transferred from the Ministry of Knowledge Economy to the Ministry of Agriculture, Forestry and Fisheries. In the meantime, salt has been divided into minerals. Recently, safety management standards for seawater, sea areas, tidal flats, salt fields and equipment, materials, etc. used for the production of edible sun salt were prescribed (Ministry of Maritime Affairs and Fisheries, Act No. 11700). , Revised on March 23, 2013).
그리고, 소금검사는 국립수산품질관리원(소금산업진흥법 시행령 제15조), 대한염업조합(소금산업진흥법 제35조 제1항), 목포대학교와 한국화학융합시험연구원(소금산업진흥법 시행령 제16조)에서 수행하고 있다.In addition, salt inspection is carried out by the National Fisheries Quality Control Agency (Article 15 of the Enforcement Decree of the Salt Industry Promotion Act), the Korean Salt Industry Association (Article 35 (1) of the Salt Industry Promotion Act), Mokpo National University and Korea Research Institute of Chemical Convergence (Article 16 of the Enforcement Decree of the Salt Industry Promotion Act). )
아울러, 소금 품질향상과 소금산업에 대한 체계적인 육성을 통해 경쟁력 강화를 위하여 식용 천일염 생산 금지해역 지정 기준, 천일염 인증 신청기준 및 방버, 천일염 인증기관 지정, 천일염 인증품에 대한 시정명력 등을 규정하고 있다.In addition, in order to enhance competitiveness through improving the salt quality and systematically fostering the salt industry, the government stipulates the standards for designating banned edible sea salt production areas, the application criteria for sun salt certification, and designation of the ban, natural salt certification authority, and corrective power for sun salt certified products.
한편, 안전관리 기준에 의한 천일염 생산을 위한 해수구역 바닷물 규정은 수소이온(pH 6.5∼8.5) 농도와 총 대장균 수(1,000 이하/100㎖)를 포함한 생활환경 기준, 생태기반 해수 수질 기준, 비소, 카드뮴, 납, 수은 별 해역 및 저수지 설정기준을 포함한 사람의 건강보호 기준을 포함하고 있다. 염전시설은 식용 천일염 생산과정에서 함수 또는 천일염과 직접 접촉하는 결정지 바닥재, 채염도구, 이송도구, 기계류, 임시보관을 위한 덮개 등의 기준도 포함하고 있다.On the other hand, the seawater regulations for sea salt production according to safety management standards include living environment standards including hydrogen ion (pH 6.5-8.5) concentrations and total coliform counts (below 1,000 / 100/100 ml), eco-based seawater quality standards, arsenic, It includes human health protection standards, including cadmium, lead and mercury zones and reservoir settings. Salt facilities also include criteria such as crystallized flooring, dyeing tools, transfer tools, machinery, and coverings for temporary storage during the production of edible salt.
또한, 제재소금, 태움-용융소금, 정제소금, 가공소금에 천일염 생산에 대한 안전관리 기준(해양수산부 고시 제2013-216호)을 새롭게 추가하고 품질기준으로 염화나트륨(70% 이상), 총 염소(40% 이상), 수분(15% 이하), 황산이온(5% 이하) 농도 하한선을 제시하였다. 청결성 기준으로 불용분(0.15%), 모래·흙(0.2% 이하)과 페로시인화 이온(불검출, 고졀방지제) 농도를 제시하였다. 해열과 저수지에 대하여 비소(50㎍/L), 납(50㎍/L), 카드뮴(10㎍/L), 수은(0.5㎍/L) 농도를 제시하였다.In addition, new safety management standards (2013-216) have been added to the production of salt salts, burned-molten salts, refined salts, and processed salts.The quality standards include sodium chloride (more than 70%) and total chlorine ( 40% or more), water (15% or less), and sulfate ions (5% or less). Insoluble content (0.15%), sand and soil (0.2% or less), and ferrocyanide ions (non-detection, antistatic agent) concentrations were presented as cleanliness criteria. Arsenic (50 μg / L), lead (50 μg / L), cadmium (10 μg / L), and mercury (0.5 μg / L) concentrations were presented for fever and reservoir.
그러나, 국내에서도 2013년도부터 수입 천일염과 국산 천일염 구분 및 유통구조 투명성 제고를 위해 국내산 천일염 포대에 부착된 라벨에 생산지역, 생산자, 생산년도를 기입하는 방법으로 국산 천일염의 이력을 관리하고 있지만, 위변조와 복제가 가능해 신뢰성이 낮다는 문제가 있다.However, since 2013, the history of domestic sun salt has been managed by entering the production area, producer, and production year on the label attached to the domestic sun salt bag to improve the transparency of distribution and distribution structure of imported sun salt and domestic sun salt. There is a problem that the reliability is low because it can be copied.
[선행기술문헌][Preceding technical literature]
[특허문헌][Patent Documents]
1. 대한민국 등록특허 제10-1431709호(2014.09.22.자 공고)1. Republic of Korea Patent No. 10-1431709 (announced on September 22, 2014)
2. 대한민국 공개특허 제2014-0031356호(2014.03.12.자 공고)2. Republic of Korea Patent Publication No. 2014-0031356 (announced on March 12, 2014)
본 발명을 종래 기술의 제반 문제점을 해결하기 위해 안출된 것으로, 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 칼륨-40(K-40)의 양을 검출함으로써 천일염의 생산년도를 보다 용이하게 추정할 수 있도록 한 K-40 농도 계측에 의한 천일염 생산년도 추정방법을 제공함에 그 목적이 있다.The present invention has been devised to solve all the problems of the prior art, the amount of remaining potassium-40 (K-40) through the gamma nuclide detector using the property that constituent insoluble elements exit at a certain rate when the natural salt is left for a long time The purpose of the present invention is to provide a method for estimating the year of production of natural salts by measuring the concentration of K-40 which makes it easier to estimate the year of production of natural salts by detecting.
또한, 본 발명에 따른 기술의 다른 목적은 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 칼륨-40(K-40)의 양을 검출함으로써 천일염의 생산년도를 추정함으로써 천일염의 이력관리를 통해 품질을 관리할 수 있도록 함에 그 목적이 있다.In addition, another object of the technique according to the present invention is to detect the amount of residual potassium -40 (K-40) through a gamma nuclide detector using a property that constituent insoluble elements exit at a certain rate when the natural salt is left for a long time. Its purpose is to enable the quality control through the history management of sun salt by estimating the production year.
아울러, 본 발명에 따른 기술의 다른 목적은 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 K-40의 양을 검출하여 천일염의 생산년도를 추정함으로써 유통과정의 투명성을 확보할 수 있도록 함에 그 목적이 있다.In addition, another object of the technology according to the present invention is to detect the amount of remaining K-40 through the gamma nuclide detector by estimating the production year of the sun salt by using the property that constituent insoluble elements escape at a certain rate when the sun salt is left for a long time The purpose is to ensure transparency in the distribution process.
전술한 목적을 달성하기 위해 구성되는 본 발명은 다음과 같다. 즉, 본 발명에 따른 K-40 농도 계측에 의한 천일염 생산년도 추정방법은 방사성 핵종분석기를 통해 천일염 또는 해당 천일염으로부터 녹아 나오는 간수를 대상으로 방사성 핵종 원소인 칼륨-40의 농도를 측정하되 측정된 칼륨-40 농도를 통해 해당 천일염의 생산년도를 추정할 수 있도록 한 구성으로 이루어진다.The present invention configured to achieve the above object is as follows. In other words, the method for estimating the year of production of natural salts by measuring the concentration of K-40 according to the present invention measures the concentration of potassium-40, a radionuclide element, in the liver salt dissolved in the natural salts or the natural salts using a radionuclide analyzer. It is composed so that the production year of the natural salt can be estimated through the concentration of -40.
한편, 전술한 바와 같은 본 발명에 따른 구성에서 방사성 핵종분석기를 통해 측정된 칼륨-40(K-40) 농도가 130∼220 Bq/kg의 범위에 해당할 경우에는 해당 천일염의 생산년도를 1∼2년으로 추정하고, 측정된 칼륨-40 농도가 130 Bq/kg 이하인 경우에는 해당 천일염의 생산년도를 3년 이상으로 추정함이 보다 양호하다.On the other hand, if the potassium-40 (K-40) concentration measured by the radionuclide analyzer in the configuration according to the present invention as described above falls within the range of 130 ~ 220 Bq / kg, the production year of the natural salt is 1 ~ If the estimated potassium-40 concentration is 130 Bq / kg or less, it is better to estimate the year of production of the natural salt at 3 years or more.
아울러, 본 발명에 따른 기술은 방사성 핵종분석기를 통해 칼륨-40의 농도를 측정하는 시간은 5,000∼30,000초간 측정함이 보다 양호하다.In addition, in the technique according to the present invention, the time for measuring the concentration of potassium-40 through the radionuclide is better measured for 5,000 to 30,000 seconds.
본 발명의 기술에 따르면 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 칼륨-40(K-40)의 양을 검출함으로써 천일염의 생산년도를 보다 용이하게 추정할 수가 있다.According to the technology of the present invention, by using the property that constituent insoluble elements exit at a certain ratio when the natural salt is left for a long time, the production year of the natural salt is more easily detected by detecting the amount of remaining potassium-40 (K-40) through a gamma nucleus detector. Can be estimated.
또한, 본 발명에 따른 기술은 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 칼륨-40(K-40)의 양을 검출함으로써 천일염의 생산년도를 추정하여 천일염의 이력관리를 통해 품질을 관리할 수 있다는 장점이 발현된다.In addition, the technique according to the present invention detects the amount of remaining potassium-40 (K-40) through the gamma nucleus detector by using a property that constituent insoluble elements are released at a certain rate when the natural salt is left for a long time, the production year of the natural salt It is estimated that quality can be managed through the history management of sun salt.
아울러, 본 발명에 따른 기술은 천일염이 장시간 방치되면 구성 불용 원소들이 일정 비율로 빠져나가는 성질을 이용하여 감마핵종검출기를 통해 잔존 K-40의 양을 검출하여 천일염의 제조시기를 추정함으로써 유통과정의 투명성을 확보할 수가 있다.In addition, the technique according to the present invention detects the amount of remaining K-40 through the gamma nuclide detector by using the property that constituent insoluble elements are released at a constant ratio when the natural salt is left for a long time to estimate the production time of the natural salt. Transparency can be secured.
도 1 은 본 발명에 따른 K-40 농도 계측에 의한 천일염 생산년도 추정방법에 따라 국산 천일염을 1 Kg을 신형 마리네리 비이커에 넣어 고순도 감마 핵종분석기에 장착한 후, 5000초에서 30,000초 분석하면서 1,460 KeV 에너지대에서 K-40 피크가 적절한 피크형태를 갖춘 시점(10,000초)을 선택하고 방사능 수치를 도출한 것을 나타낸 그래프.Figure 1 according to the present invention method for estimating the production of natural salts by measuring the concentration of K-40 according to the present invention 1 Kg into a new mariner beaker and equipped with a high-purity gamma nuclide analyzer, 1,460 while analyzing from 5000 seconds to 30,000 seconds A graph showing that the K-40 peak at the KeV energy band selected a time point with an appropriate peak shape (10,000 seconds) and derived radioactivity values.
이하에서는 첨부된 도면을 참조하여 본 발명에 따른 K-40 농도 계측에 의한 천일염 생산년도 추정방법의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the method for estimating the sun salt production year by K-40 concentration measurement according to the present invention.
도 1 은 본 발명에 따른 K-40 농도 계측에 의한 천일염 생산년도 추정방법에 따라 국산 천일염을 1 Kg을 신형 마리네리 비이커에 넣어 고순도 감마 핵종분석기에 장착한 후, 5000초에서 30,000초 분석하면서 1,460 KeV 에너지대에서 K-40 피크가 적절한 피크형태를 갖춘 시점(10,000초)을 선택하고 방사능 수치를 도출한 것을 나타낸 그래프이다.Figure 1 according to the present invention method for estimating the production of natural salts by measuring the concentration of K-40 according to the present invention 1 Kg into a new mariner beaker and equipped with a high-purity gamma nuclide analyzer, 1,460 while analyzing from 5000 seconds to 30,000 seconds The graph shows that the K-40 peak at the KeV energy band selects the time point (10,000 seconds) with the appropriate peak shape and derives the radiation value.
먼저, 본 발명에 따른 기술을 설명하기에 앞서 종래 기술의 문제점을 해결하기 위한 발명의 기술적 원리를 요약하면 다음과 같다. 천일염 생산단계는 바닷물을 햇볕에 증발시켜 소금결정을 완성하는 단계로 요약할 수 있다. 바닷물 품질안전 규정에는 수소이온 농도, 총 대장균 수와 같은 수질기준, 불용분과 모래·흙 및 페로시인화 이온과 같은 청결성 여부, 비소·납·카드뮴·수은과 같은 중금속 오염 기준을 제시하고 있다.First, prior to explaining the technology according to the present invention summarizes the technical principles of the invention for solving the problems of the prior art as follows. The natural salt production step can be summarized as the step of completing the salt crystal by evaporating the sea water in the sun. Seawater quality safety regulations provide hydrogen ion concentrations, water quality standards such as total E. coli counts, insolubles and cleanliness such as sand, soil and ferrocyanide ions, and heavy metal contamination standards such as arsenic, lead, cadmium and mercury.
한편, 2013년도부터 국내 천일염 유통구조 투명성 확보를 위해 포대에 생산지역, 생산자 및 생산년도를 확인할 수 있는 라벨을 부착하는 방법으로 국산 천일염의 이력관리를 하고 있으나, 유통단계에서 천일염 생산년도를 확인할 수 있는 방법이 없다는 문제가 있다.On the other hand, since 2013, we have managed the history of domestic salts by attaching a label to identify the production area, producer, and production year on the bag to ensure the transparency of the distribution of natural salts in Korea. The problem is that there is no way.
따라서, 본 발명은 전술한 바와 같이 유통단계에서 천일염 생산년도를 확인할 수 있는 방법이 없다는 것에 착안하여 소금을 생산 보관하는 단계에서 소금을 구성하는 성분이 간수를 통해 일정하게 빠져나가는 특성을 이용하여 생산년도를 구분하고자 기획하게 되었다.Therefore, the present invention focuses on the fact that there is no method for checking the sun salt production year in the distribution step as described above, and produces using the characteristic that the ingredients constituting the salt are constantly drawn out through the water in the step of producing and storing salt. It was planned to identify the year.
본 발명에서는 천일염 속에 반드시 포함되어 있는 천연 방사성 핵종인 칼륨-40(K-40)을 고순도 방사성 핵종분석기(High Purity Germanium Spectrometer)를 이용하여 농도를 측정하고, 측정된 K-40의 농도를 통해 해당 천일염의 생산년도를 추정하는 구성으로 이루어진다.In the present invention, the natural radionuclide potassium-40 (K-40), which is necessarily included in the natural salt, is measured using a high purity radionuclide (High Purity Germanium Spectrometer), and the concentration of the corresponding K-40 is measured. Consists of the estimation of the year of production of sun salt.
다시 말해서, 본 발명에 따른 K-40 농도 계측에 의한 천일염의 생산년도 추정방법은 방사성 핵종분석기를 통해 소금밭이나 시장에 유통되는 천일염 또는 해당 천일염으로부터 녹아 나오는 간수를 대상으로 방사성 핵종 원소인 K-40의 농도를 측정한 다음, 측정된 K-40 농도를 통해 해당 천일염의 생산년도를 추정할 수 있도록 한 구성으로 이루어진다.In other words, the method of estimating the production year of sun salt by K-40 concentration measurement according to the present invention is a radionuclide K- which is a radionuclide element for sea salts or salt water from the sun salt distributed in the salt field or market through a radionuclide analyzer. After measuring the concentration of 40, the configuration is made so that the estimated year of production of the natural salt can be estimated through the measured K-40 concentration.
한편, 전술한 바와 같이 천일염의 생산년도를 추정하기 위하여 다양한 염전에서 실제 생산년도별 천일염을 샘플 시료로 체취하여 방사성 핵종 원소인 K-40의 농도를 측정한 다음, 관련된 표를 도출함으로써 생산연도를 구분할 수 있도록 하는 이력관리 기준을 마련하였다.On the other hand, in order to estimate the production year of the natural salt as described above, taking the natural salt of each salt produced as a sample sample in various salt fields, measuring the concentration of K-40, a radionuclide element, and then deriving a relevant table to determine the production year. A traceability management standard was established to help distinguish.
전술한 바와 같이 이력관리 기준을 통해 시중에 유통되는 천일염을 무작위로 구입하여 천일염 또는 해당 천일염으로부터 녹아 나오는 간수를 대상으로 방사성 핵종 원소인 K-40의 농도를 측정한 다음, 측정된 K-40의 농도를 이력관리 기준표에 의거 해당 천일염 또는 해당 천일염으로부터 녹아 나오는 간수의 생산년도를 추정하였다.As described above, randomly purchase commercially available natural salts through the history management criteria, measure the concentration of radionuclide element K-40 in natural salts or liver water dissolved from the natural salts, and then measure the Concentration was estimated based on the history management standard table, the production year of the sun salt or the seawater that melted from the sun salt.
한편, 전술한 바와 같은 이력관리 기준에 따른 천일염의 생산년도 추정은 방사성 핵종분석기를 통해 측정된 칼륨-40(K-40) 농도가 130∼220 Bq/kg의 범위에 해당할 경우에는 해당 천일염의 생산년도를 1∼2년으로 추정하고, 측정된 칼륨-40 농도가 130 Bq/kg 이하인 경우에는 해당 천일염의 생산년도를 3년 이상으로 추정할 수 있었다.On the other hand, the estimation of the year of production of natural salts according to the history management criteria as described above, if the potassium-40 (K-40) concentration measured by the radionuclide analyzer falls within the range of 130 ~ 220 Bq / kg When the production year was estimated to be 1 to 2 years, and the measured potassium-40 concentration was 130 Bq / kg or less, the production year of the natural salt could be estimated to be 3 years or more.
그리고, 전술한 바와 같이 천일염 속에 반드시 포함되어 있는 천연 방사성 핵종인 칼륨-40(K-40)의 농도를 측정하는 방사성 핵종분석기로 본 발명에서는 고순도 게르마늄감마선 핵종검출기(HPGe Gamma Spectroscopy, 미국 켄베라사 제작, 상대효율 : 30%, 해당에너지대 : 1,460 KeV)를 이용하여 측정하였다.Further, as described above, the radionuclide is a radionuclide analyzer for measuring the concentration of potassium-40 (K-40), which is a natural radionuclide, which is necessarily included in the natural salt. Fabrication, relative efficiency: 30%, corresponding energy band: 1,460 KeV) was measured.
일반적으로, 바닷물의 염분농도는 35%이며, 염화나트륨(27 g/kg), 염화마그네슈(3.8 g/kg), 황산마그네슘(1.7 g/kg), 황산칼슘(1.3 g/kg), 황산칼륨(0.9 g/kg), 탄산칼슘(0.1 g/kg), 브롬화마그네슘(0.1 g/kg)으로 구성되며, 염류 사이의 상대적 비율은 염분에 상관없이 세계 어느 바다에서나 일정하다.In general, the salt concentration of seawater is 35%, sodium chloride (27 g / kg), magnesium chloride (3.8 g / kg), magnesium sulfate (1.7 g / kg), calcium sulfate (1.3 g / kg), potassium sulfate (0.9 g / kg), calcium carbonate (0.1 g / kg) and magnesium bromide (0.1 g / kg), and the relative proportions between salts are constant in any sea in the world, regardless of salinity.
한편, 바닷물에는 알칼리 금속(수소, 리튬, 나트륨, 칼륨, 루비듐, 세슘, 프람슘)이 항상 일정한 비율로 존재하게 된다. 소금밭에서 햇빛에 의하여 수분이 증발하고 남은 천일염 결정체에도 이들 원소가 일정한 비율로 구성되며 장시간 정치시키면 구성 원소들이 일정한 비율로 빠져나가게 된다.On the other hand, alkali water (hydrogen, lithium, sodium, potassium, rubidium, cesium, framium) is always present in a constant ratio in seawater. In the salt field, after the moisture evaporated by sunlight, the remaining natural salt crystals are composed of these elements in a constant ratio, and after standing for a long time, the elements are released at a constant ratio.
전술한 바와 같이 본 발명에서는 천일염에 잔존하는 자연 방사성 핵종인 K-40 농도를 방사성핵종분석를 통해 측정하고, 측정된 K-40 농도를 이력관리 기준에 따라 천일염의 생산년도 추정하게 된다. 이때, 방사성핵종분석기는 방사능의 감마선 에너지를 감지하여 감지된 감마선 에너지 파형의 분석을 통해 방사성의 핵종을 검출함으로써 해당 방사성 핵종의 강도를 측정하는 장치이다.As described above, in the present invention, the K-40 concentration, which is a natural radionuclide remaining in the natural salt, is measured by radionuclide analysis, and the measured K-40 concentration is estimated based on the history management standard. At this time, the radionuclide analyzer is a device for measuring the intensity of the radionuclide by detecting the radionuclide through the analysis of the detected gamma ray energy waveform by detecting the gamma ray energy of the radioactivity.
- 방사성 칼륨(Potassium-40, 반감기 : 12억5천만년)의 방사선붕괴-Radioactive decay of potassium (Potassium-40, half-life: 12.5 billion years)
40K + e- → 40Ar + 감마선(감마선 에너지 : 1.46 MeV) 40 K + e - → 40 Ar + gamma ray (gamma ray energy: 1.46 MeV)
본 발명에 따른 기술을 위해서 국내 천일염 대표 생산지인 신안군 증도면 소재 소금밭에서 소금 생산을 위한 농축 바닷물과 매년 5월에서 8월 사이에 생산된 소금을 생산년도별로 구매하였다. 구매한 천일염을 마리네리 비이커에 1 Kg 충진하고, 고순도 게르마늄감마선 핵종검출기(HPGe Gamma Spectroscopy, 미국 켄베라사 제작, 상대효율 : 30%, 해당에너지대: 1,460 KeV)를 이용하여 K-40을 10,000초 측정하였다. 방사능 수치를 도출한 그래프는 도 1 과 같다.For the technique according to the present invention, the concentrated seawater for salt production in the salt field of Jeungdo-myeon, Sinan-gun, Korea's representative sea salt production area, and salt produced between May and August of each year were purchased for each production year. Fill the purchased salt with 1 Kg in a mariner beaker, and use a high-purity germanium gamma-ray radionuclide detector (HPGe Gamma Spectroscopy, manufactured by Kenbera, USA, relative efficiency: 30%, applicable energy band: 1,460 KeV) to 10,000 K-40. Measured in seconds. The graph from which the radioactivity is derived is shown in FIG. 1.
[실시 예][Example]
국내 천일염 생산지를 대표하는 신안군 증도면 소재 소금밭에서 5∼8월 사이에 생산된 함수와 천일염을 선택하여 함수를 비교대상으로 생산연도별 천일염내 방사성핵종 원소인 K-40의 농도를 측정하고, 관련된 표를 도출함으로써 생산연도를 구분할 수 있는 이력관리 기준을 새롭게 제시하였다.The concentration of K-40, a radionuclide element in sun salt, was measured by comparing the function by selecting the salt and salt produced in May ~ August in a salt field in Jeungdo-myeon, Sinan-gun, Korea. By deriving the table, a new standard for managing the history can be distinguished.
표 1
천일염 실제 생산년도(년) K-40(Bq/㎏) 함수대비 잔존율(%)(농도범위) 추정 생산년도(년)
함수 - 354 100% -
A 1 135 37∼62(130∼220 Bq/kg) 1~2년
B 1 215
C 2 139
D 3 44 37 이하(130 Bq/kg 이하) 3년 이상
E 3 73
F 3 86
G 8 77
Table 1
Sun salt Actual production year (year) K-40 (Bq / kg) Percentage remaining relative to water (%) (concentration range) Estimated production year (year)
function - 354 100% -
A One 135 37-62 (130-220 Bq / kg) 1 ~ 2 years
B One 215
C 2 139
D 3 44 37 or less (130 Bq / kg or less) more than 3 years
E 3 73
F 3 86
G 8 77
전술한 표 1 에서와 같은 이력관리 기준을 제시함으로써 시중에 유통되는 천일염을 무작위로 구입하더라도 무작위로 구입한 천일염 또는 해당 천일염으로부터 녹아 나오는 간수를 대상으로 방사성 핵종 원소인 K-40의 농도를 측정하게 되면 해당 천일염을 생산년도를 추정할 수가 있게 된다.By presenting the historical management criteria as shown in Table 1 above, even if you purchase randomly distributed natural salts, you can measure the concentration of radionuclide element K-40 in randomly purchased natural salts or liver water dissolved from the natural salts. When the sun salt production year can be estimated.
이상에서와 같이 본 발명에 따른 기술은 감마 핵종검출기를 통해 잔존 K-40의 양을 검출함으로써 천일염의 생산년도를 보다 용이하게 추정할 수가 있음은 물론, 천일염의 생산년도를 추정하여 천일염의 이력관리를 통해 품질을 관리할 수 있다. 또한, 천일염의 제조시기를 추정함으로써 유통과정의 투명성을 확보할 수가 있다.As described above, the technique according to the present invention can more easily estimate the production year of sun salt by detecting the amount of remaining K-40 through a gamma nuclide detector, and of course, the history management of sun salt by estimating the production year of sun salt. Quality can be managed through In addition, it is possible to secure the transparency of the distribution process by estimating the production time of the sun salt.
본 발명은 전술한 실시 예에 국한되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다.The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

Claims (3)

  1. 방사성 핵종분석기를 통해 천일염 또는 해당 천일염으로부터 녹아 나오는 간수를 대상으로 방사성 핵종 원소인 칼륨-40의 농도를 측정하되 측정된 칼륨-40 농도를 통해 해당 천일염의 생산년도를 추정할 수 있도록 한 Ｋ-40 농도 계측에 의한 천일염 생산년도 추정방법.The radionuclide was used to measure the concentration of radionuclide element potassium-40 in sea salt or liver water dissolved from the sea salt, but the calculated potassium-40 concentration was used to estimate the year of production of the salt. Estimation method of sun salt production year by concentration measurement.
  2. 제 1 항에 있어서, 상기 방사성 핵종분석기를 통해 측정된 칼륨-40(K-40) 농도가 130∼220 Bq/kg의 범위에 해당할 경우에는 해당 천일염의 생산년도를 1∼2년으로 추정하고, 측정된 칼륨-40 농도가 130 Bq/kg 이하인 경우에는 해당 천일염의 생산년도를 3년 이상으로 추정하는 것을 특징으로 하는 Ｋ-40 농도 계측에 의한 천일염 생산년도 추정방법.According to claim 1, If the potassium-40 (K-40) concentration measured by the radionuclide analyzer falls within the range of 130 to 220 Bq / kg, the production year of the natural salt is estimated to be 1 to 2 years , If the measured potassium-40 concentration is 130 Bq / kg or less, the method of estimating the year-round salt production year by measuring the concentration of-40, characterized in that to estimate the year of production of the natural salt.
  3. 제 1 항 또는 제 2 항에 있어서, 상기 방사성 핵종분석기를 통해 상기 칼륨-40의 농도를 측정하는 시간은 5,000∼30,000초간 측정하는 것을 특징으로 하는 Ｋ-40 농도 계측에 의한 천일염 생산년도 추정방법.The method according to claim 1 or 2, wherein the time for measuring the concentration of the potassium-40 through the radionuclide is measured for 5,000 to 30,000 seconds.
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