Ikhadi Lokuhlola I-Isoprocarb Residue Detection
Izakhiwo zezibulala-zinambuzane ze-Isoprocarb, okuhlanganisa ukugunyazwa, isiphetho semvelo, ubuthi bemvelo kanye nezindaba zempilo yabantu.
Imininingwane
Ikhadi Lokuhlola I-Isoprocarb Residue Detection
Ikati.I-KB11301K-10T
Mayelana
Le khithi ifanele ukutholwa kwekhwalithi ye-isoprocarb esele kusampula yekhukhamba elisha.
I-Isoprocarb iyisibulala-zinambuzane esithinta futhi sibulale, esisebenza ngokushesha, isibulala-zinambuzane esiyingozi kakhulu.Isetshenziswa kakhulu ukulawula i-rice planthopper, i-rice cicada nezinye izinambuzane erayisi, izihlahla zezithelo nezitshalo.Ubuthi bezinyosi nezinhlanzi.
Ukusebenza okuphezulu kwe-liquid chromatography-tandem mass spectrometry yasetshenziselwa ukunqunywa kwezinsalela ngenxa yokukhetha okuphezulu nokwelashwa okulula.Uma kuqhathaniswa nezindlela ze-HPLC, ikhithi yethu ibonisa izinzuzo ezinkulu mayelana nokuzwela, umkhawulo wokutholwa, okokusebenza kobuchwepheshe kanye nemfuneko yesikhathi.
Amalungiselelo amasampula
(1) Ngaphambi kokuhlolwa, amasampula kufanele abuyiselwe ekamelweni lokushisa (20-30℃).
Amasampula amasha kufanele athathwe ukuze kwesule inhlabathi futhi asikwe zibe izingcezu ezingaphansi kuka-1cm wesikwele.
(2) Kala isampula engu-1.00± 0.05g ube yithubhu ye-polystyrene centrifuge engu-15mL, bese wengeza ukukhishwa okungu-8mL, vala isivalo, ugobe phezulu naphansi ngesandla ama-30s, futhi uyiyeke ime umzuzu ongu-1.I-Supernatant liquid isampula okufanele ihlolwe.
Qaphela: Indlela yesampula ibhekise ezinyathelweni zokulawula amasampula okuphepha kokudla (i-aqsiq decree no. 15 of 2019).GB2763 2019 ukuze uthole inkomba.
Imiphumela
Negetive(-) : Umugqa T kanye Nomugqa C womabili abomvu, umbala Womugqa T ujulile noma uyafana Nomugqa C, okubonisa ukuthi i-isoprocarb kusampula ingaphansi kwe-LOD yekhithi.
Okuhle(+) : Umugqa C ubomvu, umbala womugqa T ubuthakathaka kunomugqa C, okubonisa ukuthi i-isoprocarbl kusampula iphakeme kune-LOD yekhithi.
Okungavumelekile: Ulayini C awunawo umbala, okubonisa ukuthi imichilo ayivumelekile.Kulokhu, sicela ufunde imiyalelo futhi, bese wenza kabusha isivivinyo ngomucu omusha.
Isitoreji
Londoloza amakhithi endaweni eyomile engu-2 ~ 30℃ kude nokukhanya.
Amakhithi azosebenza ezinyangeni eziyi-12.
