Binciken LCMS: Bin diddigin Phthalates a cikin Baijiu na kasar Sin

A cikin 'yan shekarun nan, gurɓatar phthalate a cikin giyar Baijiu ta ƙasar Sin (giya ta ƙasar Sin) ta jawo hankalin jama'a sau da yawa a matsayin abin da ya shafi tsaron abinci. Waɗannan sinadarai masu guba, waɗanda za su iya ƙaura zuwa cikin giyar, suna haifar da haɗari ga lafiyar ɗan adam. Daga cikin dabarun nazari daban-daban, Liquid Chromatography-Mass Spectrometry (LCMS) ya fito a matsayin babbar hanyar gano phthalates a cikin Baijiu ta ƙasar Sin, saboda yawan saurin kamuwa da su da kuma daidaitonsu.

Phthalates: Ƙarin Abinci da Ba a So a Baijiu na Sin;

Ana amfani da Phthalates, ko phthalic acid esters (PAEs), a matsayin masu yin robobi. A cikin Baijiu na ƙasar Sin, suna iya samo asali daga:

1. ƙaura daga kayan marufi na filastik;
2. Hulɗa da bututun filastik ko kwantena yayin samarwa;
3. Gurɓatar sinadaran muhalli;

Duk da cewa dokokin ƙasa sun haramta amfani da kayan filastik kai tsaye ga Baijiu na ƙasar Sin, ƙaura zuwa matakin da ba a saba gani ba har yanzu abin damuwa ne. Shan phthalates fiye da kima na dogon lokaci na iya kawo cikas ga tsarin endocrine, tare da yuwuwar yin illa ga ci gaban yara da lafiyar haihuwa.

LCMS: Mai Gano Kwayoyin Halitta don Phthalates;

Liquid Chromatography-Mass Spectrometry (LCMS) yana haɗa babban ƙarfin rabuwa na liquid chromatography tare da babban ƙarfin mass spectrometry, wanda hakan ya sa ya dace musamman don nazarin abubuwan da ke cikin matrices masu rikitarwa kamar Baijiu na China. Manyan fa'idodi sun haɗa da:

• Babban ji na ƙwarai: Ganowa a ng/mL ko ƙasa da yawan abu;
• Babban zaɓi: Gano daidai da ƙididdige yawan phthalates;
• Ingantaccen aiki: Nazari a lokaci guda kan manufofi da yawa a cikin allura ɗaya;
• Ƙarfin hana tsangwama: Yana rage tasirin matrix daga Baijiu na ƙasar Sin yadda ya kamata;

Tsarin Aikin LCMS don Gano Phthalate a cikin Baijiu na Sinanci;

1. Shirye-shiryen Samfura;

· Narkewa ko allura kai tsaye (don samfuran da ba su da isasshen yawan mai);

· Yawan sinadarin nitrogen da ke kwarara da kuma musayar sinadarin da ke narkewa;

1. Rabawar Chromatography ta Ruwa;

Ta amfani da ginshiƙin chromatography na C18 na baya tare da methanol/ruwa ko acetonitrile/ruwa a matsayin matakin motsi, ana amfani da gradient exlution don raba plasticizers daban-daban. Manufofin gano abubuwa da aka saba amfani da su sun haɗa da:

Dimethyl phthalate (DMP)

Diethyl phthalate (DEP)

· Dibutyl phthalate (DBP)

· Di (2-ethylhexyl) phthalate (DEHP)

1. Gano Ma'aunin Tasirin Mass Spectrometer;

Gano a yanayin ion mara kyau ta amfani da tushen fesawa na lantarki (ESI) ko tushen sinadarai na ionization na yanayi (APCI). Na'urar auna ma'aunin nauyi tana inganta zaɓi da kuma fahimtar ganowa ta hanyar yanayin sa ido kan amsawa da yawa (MRM).

Tabbatar da Hanyar da Kula da Inganci;

Hanyar LCMS mai inganci tana buƙatar ingantaccen tabbaci:

• Layin layi: Yana rufe yawan da ake tsammanin yana da R² > 0.99;
• Iyakar ganowa/ƙididdiga: Yawanci a matakan ƙasa da μg/L, suna bin ƙa'idodin ƙa'idoji;
• Daidaito da daidaito: Yawan dawo da ƙaruwar ƙarfin lantarki na 85-115%, bambancin da ya dace <15%;
• Takamaiman Bayani: Yana tabbatar da cewa kololuwar da aka nufa ba ta da tsangwama;

Martanin Masana'antu da Jagorancin Masu Amfani;

Tare da ci gaba a fasahar gano ƙwayoyin cuta da kuma tsauraran ƙa'idoji, masana'antar Baijiu ta ƙasar Sin ta aiwatar da matakai don rage haɗarin phthalate:

1. Kula da Tushe: Cire sassan filastik a hankali a lokacin samarwa;
2. Gudanar da tsari: Inganta sa ido da kuma kula da kayan aiki;
3. Gwajin ƙarshe: Tsarin duba inganci mai tsauri;

A matsayinmu na masu amfani, za mu iya yin waɗannan abubuwa:

• Sayi daga shahararrun samfuran ta hanyar tashoshin hukuma;
• Duba ingancin marufi kuma ku guji samfuran da suka lalace;
• A adana yadda ya kamata, a guji zafi mai yawa da kuma adanawa na dogon lokaci;

Ra'ayoyi na Gaba;

LCMS za ta ci gaba da taka muhimmiyar rawa wajen gano phthalate ga Baijiu na ƙasar Sin. Ci gaba da inganta yanayin amfani da na'urori da inganta hanyoyin aiki zai ba da damar yin bincike cikin sauri da daidaito. Ci gaban hanyoyin tantancewa da yawa zai ƙara tabbatar da cikakken inganci da tabbatar da aminci.

Do you have questions about Chinese Baijiu testing? We welcome discussions via email at international@bfrl.com.cn.